11898013872 has 40 divisors (see below), whose sum is σ = 30740483376. Its totient is φ = 3965495296.

The previous prime is 11898013847. The next prime is 11898013877. The reversal of 11898013872 is 27831089811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (11898013877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642568 + ... + 660824.

Almost surely, 2^11898013872 is an apocalyptic number.

11898013872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11898013872 is an abundant number, since it is smaller than the sum of its proper divisors (18842469504).

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

11898013872 is a wasteful number, since it uses less digits than its factorization.

11898013872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31845 (or 31839 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 48.

The spelling of 11898013872 in words is "eleven billion, eight hundred ninety-eight million, thirteen thousand, eight hundred seventy-two".