82520644562 has 4 divisors (see below), whose sum is σ = 123780966846. Its totient is φ = 41260322280.

The previous prime is 82520644541. The next prime is 82520644579. The reversal of 82520644562 is 26544602528.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72372298441 + 10148346121 = 269021^2 + 100739^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20630161139 + ... + 20630161142.

Almost surely, 2^82520644562 is an apocalyptic number.

82520644562 is a deficient number, since it is larger than the sum of its proper divisors (41260322284).

82520644562 is a wasteful number, since it uses less digits than its factorization.

82520644562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41260322283.

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 82520644562 in words is "eighty-two billion, five hundred twenty million, six hundred forty-four thousand, five hundred sixty-two".