82518992386 has 4 divisors (see below), whose sum is σ = 123778488582. Its totient is φ = 41259496192.

The previous prime is 82518992357. The next prime is 82518992393. The reversal of 82518992386 is 68329981528.

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., 53710380025 + 28808612361 = 231755^2 + 169731^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20629748095 + ... + 20629748098.

Almost surely, 2^82518992386 is an apocalyptic number.

82518992386 is a deficient number, since it is larger than the sum of its proper divisors (41259496196).

82518992386 is a wasteful number, since it uses less digits than its factorization.

82518992386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41259496195.

The product of its digits is 14929920, while the sum is 61.

The spelling of 82518992386 in words is "eighty-two billion, five hundred eighteen million, nine hundred ninety-two thousand, three hundred eighty-six".