82651388315628 has 48 divisors (see below), whose sum is σ = 210412063540224. Its totient is φ = 25042695311040.

The previous prime is 82651388315611. The next prime is 82651388315633.

82651388315628 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38705500 + ... + 40785027.

It is an arithmetic number, because the mean of its divisors is an integer number (4383584657088).

Almost surely, 2^{82651388315628} is an apocalyptic number.

It is an amenable number.

82651388315628 is an abundant number, since it is smaller than the sum of its proper divisors (127760675224596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82651388315628 is a wasteful number, since it uses less digits than its factorization.

82651388315628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79498422 (or 79498420 counting only the distinct ones).

The product of its digits is 132710400, while the sum is 66.

The spelling of 82651388315628 in words is "eighty-two trillion, six hundred fifty-one billion, three hundred eighty-eight million, three hundred fifteen thousand, six hundred twenty-eight".