11872405680 has 80 divisors (see below), whose sum is σ = 36826690560. Its totient is φ = 3164062464.

The previous prime is 11872405669. The next prime is 11872405733. The reversal of 11872405680 is 8650427811.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408099 + ... + 436221.

It is an arithmetic number, because the mean of its divisors is an integer number (460333632).

Almost surely, 2^11872405680 is an apocalyptic number.

11872405680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11872405680 is an abundant number, since it is smaller than the sum of its proper divisors (24954284880).

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

11872405680 is a wasteful number, since it uses less digits than its factorization.

11872405680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29898 (or 29892 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 11872405680 in words is "eleven billion, eight hundred seventy-two million, four hundred five thousand, six hundred eighty".