11431618904 has 8 divisors (see below), whose sum is σ = 21434285460. Its totient is φ = 5715809448.

The previous prime is 11431618883. The next prime is 11431618997. The reversal of 11431618904 is 40981613411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11431618904² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714476174 + ... + 714476189.

Almost surely, 2^11431618904 is an apocalyptic number.

It is an amenable number.

11431618904 is a deficient number, since it is larger than the sum of its proper divisors (10002666556).

11431618904 is a wasteful number, since it uses less digits than its factorization.

11431618904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428952369 (or 1428952365 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 11431618904 in words is "eleven billion, four hundred thirty-one million, six hundred eighteen thousand, nine hundred four".