78274714800 has 120 divisors (see below), whose sum is σ = 258828513280. Its totient is φ = 20199916800.

The previous prime is 78274714781. The next prime is 78274714807. The reversal of 78274714800 is 841747287.

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

It is a super-2 number, since 2×78274714800² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 78274714800.

It is not an unprimeable number, because it can be changed into a prime (78274714807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1014880 + ... + 1089279.

Almost surely, 2^78274714800 is an apocalyptic number.

It is an amenable number.

78274714800 is an abundant number, since it is smaller than the sum of its proper divisors (180553798480).

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

78274714800 is a wasteful number, since it uses less digits than its factorization.

78274714800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104211 (or 2104200 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 48.

The spelling of 78274714800 in words is "seventy-eight billion, two hundred seventy-four million, seven hundred fourteen thousand, eight hundred".