79402820766 has 16 divisors (see below), whose sum is σ = 158899463184. Its totient is φ = 26451969984.

The previous prime is 79402820743. The next prime is 79402820801. The reversal of 79402820766 is 66702820497.

It is a congruent number.

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, 3898231 + ... + 3918546.

It is an arithmetic number, because the mean of its divisors is an integer number (9931216449).

Almost surely, 2^79402820766 is an apocalyptic number.

79402820766 is an abundant number, since it is smaller than the sum of its proper divisors (79496642418).

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

79402820766 is a wasteful number, since it uses less digits than its factorization.

79402820766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7818475.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 79402820766 in words is "seventy-nine billion, four hundred two million, eight hundred twenty thousand, seven hundred sixty-six".