11856896400 has 60 divisors (see below), whose sum is σ = 37981595312. Its totient is φ = 3161838720.

The previous prime is 11856896371. The next prime is 11856896423. The reversal of 11856896400 is 469865811.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 11856896400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4939174 + ... + 4941573.

Almost surely, 2^11856896400 is an apocalyptic number.

11856896400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11856896400 is an abundant number, since it is smaller than the sum of its proper divisors (26124698912).

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

11856896400 is a wasteful number, since it uses less digits than its factorization.

11856896400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9880768 (or 9880757 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 11856896400 in words is "eleven billion, eight hundred fifty-six million, eight hundred ninety-six thousand, four hundred".