78050090984 has 16 divisors (see below), whose sum is σ = 147000174720. Its totient is φ = 38850044400.

The previous prime is 78050090983. The next prime is 78050090999. The reversal of 78050090984 is 48909005087.

It is a super-2 number, since 2×78050090984² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78050090981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21873242 + ... + 21876809.

It is an arithmetic number, because the mean of its divisors is an integer number (9187510920).

Almost surely, 2^78050090984 is an apocalyptic number.

It is an amenable number.

78050090984 is a deficient number, since it is larger than the sum of its proper divisors (68950083736).

78050090984 is a wasteful number, since it uses less digits than its factorization.

78050090984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43750280 (or 43750276 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 78050090984 in words is "seventy-eight billion, fifty million, ninety thousand, nine hundred eighty-four".