78399011088 has 240 divisors, whose sum is σ = 237512905344. Its totient is φ = 24077813760.

The previous prime is 78399011039. The next prime is 78399011101. The reversal of 78399011088 is 88011099387.

It is a super-2 number, since 2×78399011088² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10392598 + ... + 10400138.

Almost surely, 2^78399011088 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 78399011088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118756452672).

78399011088 is an abundant number, since it is smaller than the sum of its proper divisors (159113894256).

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

78399011088 is a wasteful number, since it uses less digits than its factorization.

78399011088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7694 (or 7685 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 54.

The spelling of 78399011088 in words is "seventy-eight billion, three hundred ninety-nine million, eleven thousand, eighty-eight".