78562806806 has 16 divisors (see below), whose sum is σ = 129569587200. Its totient is φ = 35429181480.

The previous prime is 78562806799. The next prime is 78562806859. The reversal of 78562806806 is 60860826587.

It is a super-2 number, since 2×78562806806² (a number of 23 digits) contains 22 as substring.

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, 14056406 + ... + 14061993.

It is an arithmetic number, because the mean of its divisors is an integer number (8098099200).

Almost surely, 2^78562806806 is an apocalyptic number.

78562806806 is a deficient number, since it is larger than the sum of its proper divisors (51006780394).

78562806806 is a wasteful number, since it uses less digits than its factorization.

78562806806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28118539.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 78562806806 in words is "seventy-eight billion, five hundred sixty-two million, eight hundred six thousand, eight hundred six".