79886879100 has 576 divisors, whose sum is σ = 308246937600. Its totient is φ = 17363808000.

The previous prime is 79886879089. The next prime is 79886879119. The reversal of 79886879100 is 197868897.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 34566945 + ... + 34569255.

Almost surely, 2^79886879100 is an apocalyptic number.

79886879100 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79886879100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154123468800).

79886879100 is an abundant number, since it is smaller than the sum of its proper divisors (228360058500).

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

79886879100 is a wasteful number, since it uses less digits than its factorization.

79886879100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431 (or 2418 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 63.

The spelling of 79886879100 in words is "seventy-nine billion, eight hundred eighty-six million, eight hundred seventy-nine thousand, one hundred".