82712880831 has 16 divisors (see below), whose sum is σ = 126045498368. Its totient is φ = 47261944800.

The previous prime is 82712880793. The next prime is 82712880869. The reversal of 82712880831 is 13808821728.

It is an interprime number because it is at equal distance from previous prime (82712880793) and next prime (82712880869).

It is not a de Polignac number, because 82712880831 - 2⁷ = 82712880703 is a prime.

It is a super-2 number, since 2×82712880831² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82712885831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332661 + ... + 525441.

It is an arithmetic number, because the mean of its divisors is an integer number (7877843648).

Almost surely, 2^82712880831 is an apocalyptic number.

82712880831 is a deficient number, since it is larger than the sum of its proper divisors (43332617537).

82712880831 is a wasteful number, since it uses less digits than its factorization.

82712880831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213222.

The product of its (nonzero) digits is 344064, while the sum is 48.

The spelling of 82712880831 in words is "eighty-two billion, seven hundred twelve million, eight hundred eighty thousand, eight hundred thirty-one".