78608904099 has 16 divisors (see below), whose sum is σ = 116214657024. Its totient is φ = 46860746400.

The previous prime is 78608904083. The next prime is 78608904109. The reversal of 78608904099 is 99040980687.

It is not a de Polignac number, because 78608904099 - 2⁴ = 78608904083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78608924099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19523299 + ... + 19527324.

It is an arithmetic number, because the mean of its divisors is an integer number (7263416064).

Almost surely, 2^78608904099 is an apocalyptic number.

78608904099 is a deficient number, since it is larger than the sum of its proper divisors (37605752925).

78608904099 is a wasteful number, since it uses less digits than its factorization.

78608904099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39050698.

The product of its (nonzero) digits is 7838208, while the sum is 60.

The spelling of 78608904099 in words is "seventy-eight billion, six hundred eight million, nine hundred four thousand, ninety-nine".