1720364922432 has 336 divisors, whose sum is σ = 5338712695680. Its totient is φ = 526533156864.

The previous prime is 1720364922431. The next prime is 1720364922433. The reversal of 1720364922432 is 2342294630271.

1720364922432 is a `hidden beast` number, since 1 + 7 + 203 + 6 + 4 + 9 + 2 + 2 + 432 = 666.

It is an interprime number because it is at equal distance from previous prime (1720364922431) and next prime (1720364922433).

It is a super-2 number, since 2×1720364922432² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1720364922431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1836034668 + ... + 1836035604.

It is an arithmetic number, because the mean of its divisors is an integer number (15889025880).

Almost surely, 2^{1720364922432} is an apocalyptic number.

1720364922432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1720364922432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2669356347840).

1720364922432 is an abundant number, since it is smaller than the sum of its proper divisors (3618347773248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1720364922432 is a wasteful number, since it uses less digits than its factorization.

1720364922432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010 (or 1997 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 1720364922432 in words is "one trillion, seven hundred twenty billion, three hundred sixty-four million, nine hundred twenty-two thousand, four hundred thirty-two".