78674545152 has 120 divisors (see below), whose sum is σ = 259497322656. Its totient is φ = 22478432256.

The previous prime is 78674545139. The next prime is 78674545189. The reversal of 78674545152 is 25154547687.

It is a happy number.

78674545152 is a `hidden beast` number, since 7 + 8 + 6 + 74 + 54 + 515 + 2 = 666.

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 11 ways as a sum of consecutive naturals, for example, 1187278 + ... + 1251789.

Almost surely, 2^78674545152 is an apocalyptic number.

78674545152 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

78674545152 is an abundant number, since it is smaller than the sum of its proper divisors (180822777504).

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

78674545152 is a wasteful number, since it uses less digits than its factorization.

78674545152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439098 (or 2439079 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 54.

The spelling of 78674545152 in words is "seventy-eight billion, six hundred seventy-four million, five hundred forty-five thousand, one hundred fifty-two".