78127080 has 64 divisors (see below), whose sum is σ = 234964800. Its totient is φ = 20782080.

The previous prime is 78127079. The next prime is 78127097. The reversal of 78127080 is 8072187.

It is a super-2 number, since 2×78127080² = 12207681258652800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88240 + ... + 89120.

It is an arithmetic number, because the mean of its divisors is an integer number (3671325).

Almost surely, 2^78127080 is an apocalyptic number.

It is an amenable number.

78127080 is an abundant number, since it is smaller than the sum of its proper divisors (156837720).

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

78127080 is a wasteful number, since it uses less digits than its factorization.

78127080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634 (or 1630 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 78127080 is about 8838.9524266171. The cubic root of 78127080 is about 427.4977805021.

The spelling of 78127080 in words is "seventy-eight million, one hundred twenty-seven thousand, eighty".