11954621904 has 40 divisors (see below), whose sum is σ = 31636016832. Its totient is φ = 3887681280.

The previous prime is 11954621891. The next prime is 11954621911. The reversal of 11954621904 is 40912645911.

It is a happy number.

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, 3035284 + ... + 3039219.

Almost surely, 2^11954621904 is an apocalyptic number.

It is an amenable number.

11954621904 is an abundant number, since it is smaller than the sum of its proper divisors (19681394928).

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

11954621904 is a wasteful number, since it uses less digits than its factorization.

11954621904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6074555 (or 6074549 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 11954621904 in words is "eleven billion, nine hundred fifty-four million, six hundred twenty-one thousand, nine hundred four".