78042804570 has 96 divisors (see below), whose sum is σ = 226155084480. Its totient is φ = 18556300800.

The previous prime is 78042804533. The next prime is 78042804571. The reversal of 78042804570 is 7540824087.

78042804570 is a `hidden beast` number, since 7 + 80 + 42 + 80 + 457 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (78042804571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1313256 + ... + 1371395.

It is an arithmetic number, because the mean of its divisors is an integer number (2355782130).

Almost surely, 2^78042804570 is an apocalyptic number.

78042804570 is an abundant number, since it is smaller than the sum of its proper divisors (148112279910).

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

78042804570 is a wasteful number, since it uses less digits than its factorization.

78042804570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684700 (or 2684697 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The spelling of 78042804570 in words is "seventy-eight billion, forty-two million, eight hundred four thousand, five hundred seventy".