78379700199 has 8 divisors (see below), whose sum is σ = 104766882672. Its totient is φ = 52122825600.

The previous prime is 78379700159. The next prime is 78379700213. The reversal of 78379700199 is 99100797387.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78379700199 - 2¹¹ = 78379698151 is a prime.

It is a super-2 number, since 2×78379700199² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78379700129) 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, 32575564 + ... + 32577969.

It is an arithmetic number, because the mean of its divisors is an integer number (13095860334).

Almost surely, 2^78379700199 is an apocalyptic number.

78379700199 is a deficient number, since it is larger than the sum of its proper divisors (26387182473).

78379700199 is a wasteful number, since it uses less digits than its factorization.

78379700199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65153937.

The product of its (nonzero) digits is 6001128, while the sum is 60.

The spelling of 78379700199 in words is "seventy-eight billion, three hundred seventy-nine million, seven hundred thousand, one hundred ninety-nine".