11898504028 has 24 divisors (see below), whose sum is σ = 21708651888. Its totient is φ = 5701253376.

The previous prime is 11898504001. The next prime is 11898504029. The reversal of 11898504028 is 82040589811.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11898504029) 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, 643501 + ... + 661732.

It is an arithmetic number, because the mean of its divisors is an integer number (904527162).

Almost surely, 2^11898504028 is an apocalyptic number.

It is an amenable number.

11898504028 is a deficient number, since it is larger than the sum of its proper divisors (9810147860).

11898504028 is a wasteful number, since it uses less digits than its factorization.

11898504028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305333 (or 1305331 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 46.

The spelling of 11898504028 in words is "eleven billion, eight hundred ninety-eight million, five hundred four thousand, twenty-eight".