82577971502 has 64 divisors (see below), whose sum is σ = 137002731264. Its totient is φ = 37095252480.

The previous prime is 82577971493. The next prime is 82577971559. The reversal of 82577971502 is 20517977528.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148254608 + ... + 148255164.

It is an arithmetic number, because the mean of its divisors is an integer number (2140667676).

Almost surely, 2^82577971502 is an apocalyptic number.

82577971502 is a deficient number, since it is larger than the sum of its proper divisors (54424759762).

82577971502 is a wasteful number, since it uses less digits than its factorization.

82577971502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293.

The product of its (nonzero) digits is 2469600, while the sum is 53.

The spelling of 82577971502 in words is "eighty-two billion, five hundred seventy-seven million, nine hundred seventy-one thousand, five hundred two".