78041779199 has 8 divisors (see below), whose sum is σ = 78475404480. Its totient is φ = 77609046816.

The previous prime is 78041779187. The next prime is 78041779223. The reversal of 78041779199 is 99197714087.

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

It is a cyclic number.

It is not a de Polignac number, because 78041779199 - 2²⁰ = 78040730623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78041779139) 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, 47552 + ... + 397925.

It is an arithmetic number, because the mean of its divisors is an integer number (9809425560).

Almost surely, 2^78041779199 is an apocalyptic number.

78041779199 is a deficient number, since it is larger than the sum of its proper divisors (433625281).

78041779199 is a wasteful number, since it uses less digits than its factorization.

78041779199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446449.

The product of its (nonzero) digits is 8001504, while the sum is 62.

The spelling of 78041779199 in words is "seventy-eight billion, forty-one million, seven hundred seventy-nine thousand, one hundred ninety-nine".