11657864574852 has 12 divisors (see below), whose sum is σ = 27201684008016. Its totient is φ = 3885954858280.

The previous prime is 11657864574751. The next prime is 11657864574859. The reversal of 11657864574852 is 25847546875611.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (11657864574859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485744357274 + ... + 485744357297.

It is an arithmetic number, because the mean of its divisors is an integer number (2266807000668).

Almost surely, 2^{11657864574852} is an apocalyptic number.

11657864574852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11657864574852 is an abundant number, since it is smaller than the sum of its proper divisors (15543819433164).

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

11657864574852 is a wasteful number, since it uses less digits than its factorization.

11657864574852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971488714578 (or 971488714576 counting only the distinct ones).

The product of its digits is 451584000, while the sum is 69.

The spelling of 11657864574852 in words is "eleven trillion, six hundred fifty-seven billion, eight hundred sixty-four million, five hundred seventy-four thousand, eight hundred fifty-two".