18957064404992 has 544 divisors, whose sum is σ = 46118537203200. Its totient is φ = 7782562529280.

The previous prime is 18957064404973. The next prime is 18957064405007. The reversal of 18957064404992 is 29940446075981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61749395303 + ... + 61749395609.

It is an arithmetic number, because the mean of its divisors is an integer number (84776722800).

Almost surely, 2^{18957064404992} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18957064404992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23059268601600).

18957064404992 is an abundant number, since it is smaller than the sum of its proper divisors (27161472798208).

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

18957064404992 is an frugal number, since it uses more digits than its factorization.

18957064404992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 68.

The spelling of 18957064404992 in words is "eighteen trillion, nine hundred fifty-seven billion, sixty-four million, four hundred four thousand, nine hundred ninety-two".