11685408456 has 32 divisors (see below), whose sum is σ = 30931964640. Its totient is φ = 3666010368.

The previous prime is 11685408431. The next prime is 11685408463. The reversal of 11685408456 is 65480458611.

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, 14319946 + ... + 14320761.

It is an arithmetic number, because the mean of its divisors is an integer number (966623895).

Almost surely, 2^11685408456 is an apocalyptic number.

It is an amenable number.

11685408456 is an abundant number, since it is smaller than the sum of its proper divisors (19246556184).

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

11685408456 is a wasteful number, since it uses less digits than its factorization.

11685408456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28640733 (or 28640729 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 11685408456 in words is "eleven billion, six hundred eighty-five million, four hundred eight thousand, four hundred fifty-six".