812538310302 has 12 divisors (see below), whose sum is σ = 1760499672360. Its totient is φ = 270846103428.

The previous prime is 812538310261. The next prime is 812538310303. The reversal of 812538310302 is 203013835218.

It is a happy number.

812538310302 is a `hidden beast` number, since 8 + 1 + 2 + 5 + 38 + 310 + 302 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812538310303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22570508602 + ... + 22570508637.

It is an arithmetic number, because the mean of its divisors is an integer number (146708306030).

Almost surely, 2^812538310302 is an apocalyptic number.

812538310302 is an abundant number, since it is smaller than the sum of its proper divisors (947961362058).

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

812538310302 is a wasteful number, since it uses less digits than its factorization.

812538310302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45141017247 (or 45141017244 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 812538310302 in words is "eight hundred twelve billion, five hundred thirty-eight million, three hundred ten thousand, three hundred two".