1731222422664 has 32 divisors (see below), whose sum is σ = 4946349779520. Its totient is φ = 494634977856.

The previous prime is 1731222422663. The next prime is 1731222422687. The reversal of 1731222422664 is 4662242221371.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1731222422663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5152447519 + ... + 5152447854.

It is an arithmetic number, because the mean of its divisors is an integer number (154573430610).

Almost surely, 2^{1731222422664} is an apocalyptic number.

1731222422664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1731222422664 is an abundant number, since it is smaller than the sum of its proper divisors (3215127356856).

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

1731222422664 is a wasteful number, since it uses less digits than its factorization.

1731222422664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10304895389 (or 10304895385 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

The spelling of 1731222422664 in words is "one trillion, seven hundred thirty-one billion, two hundred twenty-two million, four hundred twenty-two thousand, six hundred sixty-four".