815988307013 has 8 divisors (see below), whose sum is σ = 898335752160. Its totient is φ = 735001976880.

The previous prime is 815988307003. The next prime is 815988307033. The reversal of 815988307013 is 310703889518.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 815988307013 - 2¹² = 815988302917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (815988307003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340277495 + ... + 340279892.

It is an arithmetic number, because the mean of its divisors is an integer number (112291969020).

Almost surely, 2^815988307013 is an apocalyptic number.

It is an amenable number.

815988307013 is a deficient number, since it is larger than the sum of its proper divisors (82347445147).

815988307013 is a wasteful number, since it uses less digits than its factorization.

815988307013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680557507.

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 815988307013 in words is "eight hundred fifteen billion, nine hundred eighty-eight million, three hundred seven thousand, thirteen".