77392079080 has 256 divisors, whose sum is σ = 201553920000. Its totient is φ = 26550374400.

The previous prime is 77392079077. The next prime is 77392079087. The reversal of 77392079080 is 8097029377.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77392079087) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 79702995 + ... + 79703965.

It is an arithmetic number, because the mean of its divisors is an integer number (787320000).

Almost surely, 2^77392079080 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 77392079080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100776960000).

77392079080 is an abundant number, since it is smaller than the sum of its proper divisors (124161840920).

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

77392079080 is a wasteful number, since it uses less digits than its factorization.

77392079080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248 (or 1244 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 52.

The spelling of 77392079080 in words is "seventy-seven billion, three hundred ninety-two million, seventy-nine thousand, eighty".