78150274560 has 120 divisors (see below), whose sum is σ = 270656460360. Its totient is φ = 20840067072.

The previous prime is 78150274519. The next prime is 78150274577. The reversal of 78150274560 is 6547205187.

78150274560 is a `hidden beast` number, since 7 + 8 + 15 + 0 + 2 + 74 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×78150274560² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 1672930 + ... + 1719009.

It is an arithmetic number, because the mean of its divisors is an integer number (2255470503).

Almost surely, 2^78150274560 is an apocalyptic number.

It is an amenable number.

78150274560 is an abundant number, since it is smaller than the sum of its proper divisors (192506185800).

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

78150274560 is a wasteful number, since it uses less digits than its factorization.

78150274560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391968 (or 3391949 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 78150274560 in words is "seventy-eight billion, one hundred fifty million, two hundred seventy-four thousand, five hundred sixty".