1998872534904 has 32 divisors (see below), whose sum is σ = 5711064385920. Its totient is φ = 571106438496.

The previous prime is 1998872534861. The next prime is 1998872534941. The reversal of 1998872534904 is 4094352788991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5949025234 + ... + 5949025569.

It is an arithmetic number, because the mean of its divisors is an integer number (178470762060).

Almost surely, 2^{1998872534904} is an apocalyptic number.

1998872534904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1998872534904 is an abundant number, since it is smaller than the sum of its proper divisors (3712191851016).

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

1998872534904 is a wasteful number, since it uses less digits than its factorization.

1998872534904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11898050819 (or 11898050815 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 69.

The spelling of 1998872534904 in words is "one trillion, nine hundred ninety-eight billion, eight hundred seventy-two million, five hundred thirty-four thousand, nine hundred four".