8021312634 has 16 divisors (see below), whose sum is σ = 16168946688. Its totient is φ = 2652717312.

The previous prime is 8021312617. The next prime is 8021312639. The reversal of 8021312634 is 4362131208.

It is not an unprimeable number, because it can be changed into a prime (8021312639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5262567 + ... + 5264090.

It is an arithmetic number, because the mean of its divisors is an integer number (1010559168).

Almost surely, 2^8021312634 is an apocalyptic number.

8021312634 is an abundant number, since it is smaller than the sum of its proper divisors (8147634054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8021312634 is a wasteful number, since it uses less digits than its factorization.

8021312634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10526789.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 8021312634 is about 89561.7811010924. The cubic root of 8021312634 is about 2001.7744779817.

The spelling of 8021312634 in words is "eight billion, twenty-one million, three hundred twelve thousand, six hundred thirty-four".