82376809731 has 28 divisors (see below), whose sum is σ = 126846829632. Its totient is φ = 53433588816.

The previous prime is 82376809727. The next prime is 82376809751. The reversal of 82376809731 is 13790867328.

82376809731 is a `hidden beast` number, since 82 + 376 + 80 + 97 + 31 = 666.

It is not a de Polignac number, because 82376809731 - 2² = 82376809727 is a prime.

It is a super-2 number, since 2×82376809731² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82376809751) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1500051 + ... + 1553996.

Almost surely, 2^82376809731 is an apocalyptic number.

82376809731 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

82376809731 is a deficient number, since it is larger than the sum of its proper divisors (44470019901).

82376809731 is an equidigital number, since it uses as much as digits as its factorization.

82376809731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054102 (or 3054087 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 82376809731 in words is "eighty-two billion, three hundred seventy-six million, eight hundred nine thousand, seven hundred thirty-one".