80018174778896 has 20 divisors (see below), whose sum is σ = 155038568702700. Its totient is φ = 40008221565312.

The previous prime is 80018174778887. The next prime is 80018174778923. The reversal of 80018174778896 is 69887747181008.

80018174778896 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 71559756490000 + 8458418288896 = 8459300^2 + 2908336^2 .

It is a Smith number, since the sum of its digits (74) coincides with the sum of the digits of its prime factors.

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, 53351231 + ... + 54830558.

It is an arithmetic number, because the mean of its divisors is an integer number (7751928435135).

Almost surely, 2^{80018174778896} is an apocalyptic number.

It is an amenable number.

80018174778896 is a deficient number, since it is larger than the sum of its proper divisors (75020393923804).

80018174778896 is a wasteful number, since it uses less digits than its factorization.

80018174778896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108228026 (or 108228020 counting only the distinct ones).

The product of its (nonzero) digits is 303464448, while the sum is 74.

The spelling of 80018174778896 in words is "eighty trillion, eighteen billion, one hundred seventy-four million, seven hundred seventy-eight thousand, eight hundred ninety-six".