78062479920 has 400 divisors, whose sum is σ = 279594738720. Its totient is φ = 20176293888.

The previous prime is 78062479907. The next prime is 78062479949. The reversal of 78062479920 is 2997426087.

78062479920 is a `hidden beast` number, since 7 + 8 + 0 + 624 + 7 + 9 + 9 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 27907962 + ... + 27910758.

Almost surely, 2^78062479920 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 78062479920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139797369360).

78062479920 is an abundant number, since it is smaller than the sum of its proper divisors (201532258800).

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

78062479920 is a wasteful number, since it uses less digits than its factorization.

78062479920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954 (or 2939 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 78062479920 in words is "seventy-eight billion, sixty-two million, four hundred seventy-nine thousand, nine hundred twenty".