82657756573 has 16 divisors (see below), whose sum is σ = 95464901376. Its totient is φ = 70101515520.

The previous prime is 82657756567. The next prime is 82657756603. The reversal of 82657756573 is 37565775628.

It is a cyclic number.

It is not a de Polignac number, because 82657756573 - 2³³ = 74067821981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82657756273) 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, 802965 + ... + 900037.

It is an arithmetic number, because the mean of its divisors is an integer number (5966556336).

Almost surely, 2^82657756573 is an apocalyptic number.

It is an amenable number.

82657756573 is a deficient number, since it is larger than the sum of its proper divisors (12807144803).

82657756573 is a wasteful number, since it uses less digits than its factorization.

82657756573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98364.

The product of its digits is 74088000, while the sum is 61.

The spelling of 82657756573 in words is "eighty-two billion, six hundred fifty-seven million, seven hundred fifty-six thousand, five hundred seventy-three".