7815032113 has 32 divisors (see below), whose sum is σ = 9225216000. Its totient is φ = 6482047680.

The previous prime is 7815032059. The next prime is 7815032123. The reversal of 7815032113 is 3112305187.

It is a cyclic number.

It is not a de Polignac number, because 7815032113 - 2²⁹ = 7278161201 is a prime.

It is a super-2 number, since 2×7815032113² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7815032123) 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, 15661138 + ... + 15661636.

It is an arithmetic number, because the mean of its divisors is an integer number (288288000).

Almost surely, 2^7815032113 is an apocalyptic number.

It is an amenable number.

7815032113 is a deficient number, since it is larger than the sum of its proper divisors (1410183887).

7815032113 is a wasteful number, since it uses less digits than its factorization.

7815032113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 7815032113 is about 88402.6702820678. The cubic root of 7815032113 is about 1984.4656640091.

The spelling of 7815032113 in words is "seven billion, eight hundred fifteen million, thirty-two thousand, one hundred thirteen".