815357349697 has 16 divisors (see below), whose sum is σ = 943339658112. Its totient is φ = 696493797120.

The previous prime is 815357349589. The next prime is 815357349701. The reversal of 815357349697 is 796943753518.

It is a de Polignac number, because none of the positive numbers 2^k-815357349697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (815357349197) 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 15 ways as a sum of consecutive naturals, for example, 3441813 + ... + 3671074.

It is an arithmetic number, because the mean of its divisors is an integer number (58958728632).

Almost surely, 2^815357349697 is an apocalyptic number.

It is an amenable number.

815357349697 is a deficient number, since it is larger than the sum of its proper divisors (127982308415).

815357349697 is a wasteful number, since it uses less digits than its factorization.

815357349697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7113528.

The product of its digits is 171460800, while the sum is 67.

The spelling of 815357349697 in words is "eight hundred fifteen billion, three hundred fifty-seven million, three hundred forty-nine thousand, six hundred ninety-seven".