80808074640 has 120 divisors (see below), whose sum is σ = 285663680640. Its totient is φ = 20414668032.

The previous prime is 80808074623. The next prime is 80808074707. The reversal of 80808074640 is 4647080808.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×80808074640² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2939832 + ... + 2967191.

It is an arithmetic number, because the mean of its divisors is an integer number (2380530672).

Almost surely, 2^80808074640 is an apocalyptic number.

80808074640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80808074640 is an abundant number, since it is smaller than the sum of its proper divisors (204855606000).

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

80808074640 is a wasteful number, since it uses less digits than its factorization.

80808074640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5907061 (or 5907052 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The spelling of 80808074640 in words is "eighty billion, eight hundred eight million, seventy-four thousand, six hundred forty".