80878474512 has 80 divisors (see below), whose sum is σ = 253255844160. Its totient is φ = 24508627200.

The previous prime is 80878474471. The next prime is 80878474513. The reversal of 80878474512 is 21547487808.

80878474512 is a `hidden beast` number, since 8 + 0 + 87 + 8 + 47 + 4 + 512 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (80878474513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8505189 + ... + 8514692.

It is an arithmetic number, because the mean of its divisors is an integer number (3165698052).

Almost surely, 2^80878474512 is an apocalyptic number.

It is an amenable number.

80878474512 is an abundant number, since it is smaller than the sum of its proper divisors (172377369648).

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

80878474512 is a wasteful number, since it uses less digits than its factorization.

80878474512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17019909 (or 17019897 counting only the distinct ones).

The product of its (nonzero) digits is 4014080, while the sum is 54.

The spelling of 80878474512 in words is "eighty billion, eight hundred seventy-eight million, four hundred seventy-four thousand, five hundred twelve".