78814567152 has 60 divisors (see below), whose sum is σ = 227686540224. Its totient is φ = 25424052480.

The previous prime is 78814567151. The next prime is 78814567201. The reversal of 78814567152 is 25176541887.

78814567152 is a `hidden beast` number, since 78 + 8 + 1 + 4 + 567 + 1 + 5 + 2 = 666.

It is a super-2 number, since 2×78814567152² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78814567151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8823333 + ... + 8832260.

Almost surely, 2^78814567152 is an apocalyptic number.

78814567152 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

78814567152 is an abundant number, since it is smaller than the sum of its proper divisors (148871973072).

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

78814567152 is a wasteful number, since it uses less digits than its factorization.

78814567152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17655638 (or 17655629 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 54.

The spelling of 78814567152 in words is "seventy-eight billion, eight hundred fourteen million, five hundred sixty-seven thousand, one hundred fifty-two".