78898060799 has 8 divisors (see below), whose sum is σ = 80247143808. Its totient is φ = 77554022040.

The previous prime is 78898060757. The next prime is 78898060811. The reversal of 78898060799 is 99706089887.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78898060799 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 (78898060739) 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, 1229507 + ... + 1292084.

It is an arithmetic number, because the mean of its divisors is an integer number (10030892976).

Almost surely, 2^78898060799 is an apocalyptic number.

78898060799 is a deficient number, since it is larger than the sum of its proper divisors (1349083009).

78898060799 is a wasteful number, since it uses less digits than its factorization.

78898060799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522125.

The product of its (nonzero) digits is 109734912, while the sum is 71.

The spelling of 78898060799 in words is "seventy-eight billion, eight hundred ninety-eight million, sixty thousand, seven hundred ninety-nine".