11853680520 has 64 divisors (see below), whose sum is σ = 38793867840. Its totient is φ = 2873619200.

The previous prime is 11853680507. The next prime is 11853680549. The reversal of 11853680520 is 2508635811.

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, 4488711 + ... + 4491350.

It is an arithmetic number, because the mean of its divisors is an integer number (606154185).

Almost surely, 2^11853680520 is an apocalyptic number.

11853680520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11853680520 is an abundant number, since it is smaller than the sum of its proper divisors (26940187320).

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

11853680520 is a wasteful number, since it uses less digits than its factorization.

11853680520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8980086 (or 8980082 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 11853680520 in words is "eleven billion, eight hundred fifty-three million, six hundred eighty thousand, five hundred twenty".