80178738272 has 24 divisors (see below), whose sum is σ = 162943889472. Its totient is φ = 38796163200.

The previous prime is 80178738259. The next prime is 80178738287. The reversal of 80178738272 is 27283787108.

It is a congruent number.

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, 40411679 + ... + 40413662.

It is an arithmetic number, because the mean of its divisors is an integer number (6789328728).

Almost surely, 2^80178738272 is an apocalyptic number.

It is an amenable number.

80178738272 is an abundant number, since it is smaller than the sum of its proper divisors (82765151200).

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

80178738272 is a wasteful number, since it uses less digits than its factorization.

80178738272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80825382 (or 80825374 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 53.

The spelling of 80178738272 in words is "eighty billion, one hundred seventy-eight million, seven hundred thirty-eight thousand, two hundred seventy-two".