813969542113 has 32 divisors (see below), whose sum is σ = 1003608849152. Its totient is φ = 642863692800.

The previous prime is 813969542069. The next prime is 813969542129. The reversal of 813969542113 is 311245969318.

It is not a de Polignac number, because 813969542113 - 2²⁵ = 813935987681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (813969540113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183282973 + ... + 183287413.

It is an arithmetic number, because the mean of its divisors is an integer number (31362776536).

Almost surely, 2^813969542113 is an apocalyptic number.

It is an amenable number.

813969542113 is a deficient number, since it is larger than the sum of its proper divisors (189639307039).

813969542113 is a wasteful number, since it uses less digits than its factorization.

813969542113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7625.

The product of its digits is 1399680, while the sum is 52.

The spelling of 813969542113 in words is "eight hundred thirteen billion, nine hundred sixty-nine million, five hundred forty-two thousand, one hundred thirteen".