82520667880 has 32 divisors (see below), whose sum is σ = 212196003840. Its totient is φ = 28292800320.

The previous prime is 82520667863. The next prime is 82520667923. The reversal of 82520667880 is 8876602528.

It is a super-2 number, since 2×82520667880² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147358056 + ... + 147358615.

It is an arithmetic number, because the mean of its divisors is an integer number (6631125120).

Almost surely, 2^82520667880 is an apocalyptic number.

It is an amenable number.

82520667880 is an abundant number, since it is smaller than the sum of its proper divisors (129675335960).

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

82520667880 is a wasteful number, since it uses less digits than its factorization.

82520667880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294716689 (or 294716685 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 82520667880 in words is "eighty-two billion, five hundred twenty million, six hundred sixty-seven thousand, eight hundred eighty".