78579154944 has 540 divisors, whose sum is σ = 255388357224. Its totient is φ = 24078974976.

The previous prime is 78579154921. The next prime is 78579154967. The reversal of 78579154944 is 44945197587.

78579154944 is a `hidden beast` number, since 7 + 8 + 57 + 91 + 5 + 494 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (78579154921) and next prime (78579154967).

Its product of digits (50803200) is a multiple of the sum of its prime factors (112).

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 35 ways as a sum of consecutive naturals, for example, 1827422187 + ... + 1827422229.

Almost surely, 2^78579154944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78579154944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127694178612).

78579154944 is an abundant number, since it is smaller than the sum of its proper divisors (176809202280).

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

78579154944 is an frugal number, since it uses more digits than its factorization.

78579154944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 65 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 63.

The spelling of 78579154944 in words is "seventy-eight billion, five hundred seventy-nine million, one hundred fifty-four thousand, nine hundred forty-four".