82870708637 has 2 divisors, whose sum is σ = 82870708638. Its totient is φ = 82870708636.

The previous prime is 82870708633. The next prime is 82870708663. The reversal of 82870708637 is 73680707828.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44648112601 + 38222596036 = 211301^2 + 195506^2 .

It is a cyclic number.

It is not a de Polignac number, because 82870708637 - 2² = 82870708633 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82870708633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41435354318 + 41435354319.

It is an arithmetic number, because the mean of its divisors is an integer number (41435354319).

Almost surely, 2^82870708637 is an apocalyptic number.

It is an amenable number.

82870708637 is a deficient number, since it is larger than the sum of its proper divisors (1).

82870708637 is an equidigital number, since it uses as much as digits as its factorization.

82870708637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 82870708637 in words is "eighty-two billion, eight hundred seventy million, seven hundred eight thousand, six hundred thirty-seven".