78929419900 has 18 divisors (see below), whose sum is σ = 171276841400. Its totient is φ = 31571767920.

The previous prime is 78929419897. The next prime is 78929419903. The reversal of 78929419900 is 991492987.

It is an interprime number because it is at equal distance from previous prime (78929419897) and next prime (78929419903).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78929419903) 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 5 ways as a sum of consecutive naturals, for example, 394647000 + ... + 394647199.

Almost surely, 2^78929419900 is an apocalyptic number.

It is an amenable number.

78929419900 is an abundant number, since it is smaller than the sum of its proper divisors (92347421500).

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

78929419900 is a wasteful number, since it uses less digits than its factorization.

78929419900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789294213 (or 789294206 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 58.

The spelling of 78929419900 in words is "seventy-eight billion, nine hundred twenty-nine million, four hundred nineteen thousand, nine hundred".