19423124738640 has 320 divisors, whose sum is σ = 77403231352320. Its totient is φ = 4439571088896.

The previous prime is 19423124738639. The next prime is 19423124738663. The reversal of 19423124738640 is 4683742132491.

19423124738640 is a `hidden beast` number, since 1 + 9 + 4 + 231 + 24 + 7 + 386 + 4 + 0 = 666.

It is a super-2 number, since 2×19423124738640² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 6704899 + ... + 9154338.

It is an arithmetic number, because the mean of its divisors is an integer number (241885097976).

Almost surely, 2^{19423124738640} is an apocalyptic number.

19423124738640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19423124738640 is an abundant number, since it is smaller than the sum of its proper divisors (57980106613680).

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

19423124738640 is an equidigital number, since it uses as much as digits as its factorization.

19423124738640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15859278 (or 15859254 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 19423124738640 in words is "nineteen trillion, four hundred twenty-three billion, one hundred twenty-four million, seven hundred thirty-eight thousand, six hundred forty".