78789900192 has 48 divisors (see below), whose sum is σ = 206842970880. Its totient is φ = 26260826112.

The previous prime is 78789900179. The next prime is 78789900193. The reversal of 78789900192 is 29100998787.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (78789900193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187184 + ... + 1251792.

It is an arithmetic number, because the mean of its divisors is an integer number (4309228560).

Almost surely, 2^78789900192 is an apocalyptic number.

It is an amenable number.

78789900192 is an abundant number, since it is smaller than the sum of its proper divisors (128053070688).

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

78789900192 is a wasteful number, since it uses less digits than its factorization.

78789900192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77325 (or 77317 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 60.

The spelling of 78789900192 in words is "seventy-eight billion, seven hundred eighty-nine million, nine hundred thousand, one hundred ninety-two".