812976161707 has 4 divisors (see below), whose sum is σ = 813105974160. Its totient is φ = 812846349256.

The previous prime is 812976161693. The next prime is 812976161729. The reversal of 812976161707 is 707161679218.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-812976161707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812976161747) 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, 64896832 + ... + 64909357.

It is an arithmetic number, because the mean of its divisors is an integer number (203276493540).

Almost surely, 2^812976161707 is an apocalyptic number.

812976161707 is a deficient number, since it is larger than the sum of its proper divisors (129812453).

812976161707 is a wasteful number, since it uses less digits than its factorization.

812976161707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129812452.

The product of its (nonzero) digits is 1778112, while the sum is 55.

The spelling of 812976161707 in words is "eight hundred twelve billion, nine hundred seventy-six million, one hundred sixty-one thousand, seven hundred seven".