81074862294 has 16 divisors (see below), whose sum is σ = 162167307120. Its totient is φ = 27022023680.

The previous prime is 81074862293. The next prime is 81074862317. The reversal of 81074862294 is 49226847018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81074862293) 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, 672279 + ... + 783650.

It is an arithmetic number, because the mean of its divisors is an integer number (10135456695).

Almost surely, 2^81074862294 is an apocalyptic number.

81074862294 is an abundant number, since it is smaller than the sum of its proper divisors (81092444826).

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

81074862294 is a wasteful number, since it uses less digits than its factorization.

81074862294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465215.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 81074862294 in words is "eighty-one billion, seventy-four million, eight hundred sixty-two thousand, two hundred ninety-four".