82815795523 has 12 divisors (see below), whose sum is σ = 85911816640. Its totient is φ = 79827856416.

The previous prime is 82815795521. The next prime is 82815795533. The reversal of 82815795523 is 32559751828.

It is not a de Polignac number, because 82815795523 - 2¹ = 82815795521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82815795521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429373 + ... + 591601.

Almost surely, 2^82815795523 is an apocalyptic number.

82815795523 is a deficient number, since it is larger than the sum of its proper divisors (3096021117).

82815795523 is a wasteful number, since it uses less digits than its factorization.

82815795523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162894 (or 162865 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 55.

The spelling of 82815795523 in words is "eighty-two billion, eight hundred fifteen million, seven hundred ninety-five thousand, five hundred twenty-three".