70331795813 has 4 divisors (see below), whose sum is σ = 70332326220. Its totient is φ = 70331265408.

The previous prime is 70331795801. The next prime is 70331795861. The reversal of 70331795813 is 31859713307.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5379195649 + 64952600164 = 73343^2 + 254858^2 .

It is a cyclic number.

It is not a de Polignac number, because 70331795813 - 2⁸ = 70331795557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70331725813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131231 + ... + 397347.

It is an arithmetic number, because the mean of its divisors is an integer number (17583081555).

Almost surely, 2^70331795813 is an apocalyptic number.

It is an amenable number.

70331795813 is a deficient number, since it is larger than the sum of its proper divisors (530407).

70331795813 is a wasteful number, since it uses less digits than its factorization.

70331795813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530406.

The product of its (nonzero) digits is 476280, while the sum is 47.

The spelling of 70331795813 in words is "seventy billion, three hundred thirty-one million, seven hundred ninety-five thousand, eight hundred thirteen".