18379097557984 has 48 divisors (see below), whose sum is σ = 37163869355088. Its totient is φ = 8940682340352.

The previous prime is 18379097557981. The next prime is 18379097557991. The reversal of 18379097557984 is 48975579097381.

It is a junction number, because it is equal to n+sod(n) for n = 18379097557898 and 18379097557907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18379097557981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21191167 + ... + 22041409.

It is an arithmetic number, because the mean of its divisors is an integer number (774247278231).

Almost surely, 2^{18379097557984} is an apocalyptic number.

It is an amenable number.

18379097557984 is an abundant number, since it is smaller than the sum of its proper divisors (18784771797104).

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

18379097557984 is a wasteful number, since it uses less digits than its factorization.

18379097557984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868547 (or 868539 counting only the distinct ones).

The product of its (nonzero) digits is 4800902400, while the sum is 82.

The spelling of 18379097557984 in words is "eighteen trillion, three hundred seventy-nine billion, ninety-seven million, five hundred fifty-seven thousand, nine hundred eighty-four".