820747620076 has 12 divisors (see below), whose sum is σ = 1471340246040. Its totient is φ = 400364692640.

The previous prime is 820747620053. The next prime is 820747620101. The reversal of 820747620076 is 670026747028.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2502279166 + ... + 2502279493.

It is an arithmetic number, because the mean of its divisors is an integer number (122611687170).

Almost surely, 2^820747620076 is an apocalyptic number.

It is an amenable number.

820747620076 is a deficient number, since it is larger than the sum of its proper divisors (650592625964).

820747620076 is a wasteful number, since it uses less digits than its factorization.

820747620076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004558704 (or 5004558702 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 49.

The spelling of 820747620076 in words is "eight hundred twenty billion, seven hundred forty-seven million, six hundred twenty thousand, seventy-six".