78040099088 has 80 divisors (see below), whose sum is σ = 184854668544. Its totient is φ = 31153766400.

The previous prime is 78040099043. The next prime is 78040099097. The reversal of 78040099088 is 88099004087.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26588 + ... + 395963.

Almost surely, 2^78040099088 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 78040099088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92427334272).

78040099088 is an abundant number, since it is smaller than the sum of its proper divisors (106814569456).

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

78040099088 is a wasteful number, since it uses less digits than its factorization.

78040099088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422680 (or 422674 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The spelling of 78040099088 in words is "seventy-eight billion, forty million, ninety-nine thousand, eighty-eight".