80578247136 has 48 divisors (see below), whose sum is σ = 211532759424. Its totient is φ = 26857528704.

The previous prime is 80578247053. The next prime is 80578247143. The reversal of 80578247136 is 63174287508.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

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, 2287191 + ... + 2322153.

It is an arithmetic number, because the mean of its divisors is an integer number (4406932488).

Almost surely, 2^80578247136 is an apocalyptic number.

It is an amenable number.

80578247136 is an abundant number, since it is smaller than the sum of its proper divisors (130954512288).

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

80578247136 is a wasteful number, since it uses less digits than its factorization.

80578247136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58983 (or 58975 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 80578247136 in words is "eighty billion, five hundred seventy-eight million, two hundred forty-seven thousand, one hundred thirty-six".