13558968840 has 32 divisors (see below), whose sum is σ = 40676906880. Its totient is φ = 3615724992.

The previous prime is 13558968833. The next prime is 13558968869. The reversal of 13558968840 is 4886985531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56495584 + ... + 56495823.

It is an arithmetic number, because the mean of its divisors is an integer number (1271153340).

Almost surely, 2^13558968840 is an apocalyptic number.

13558968840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13558968840 is an abundant number, since it is smaller than the sum of its proper divisors (27117938040).

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

13558968840 is a wasteful number, since it uses less digits than its factorization.

13558968840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112991421 (or 112991417 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 57.

The spelling of 13558968840 in words is "thirteen billion, five hundred fifty-eight million, nine hundred sixty-eight thousand, eight hundred forty".