78358208959 has 16 divisors (see below), whose sum is σ = 83277224800. Its totient is φ = 73519311744.

The previous prime is 78358208941. The next prime is 78358208963. The reversal of 78358208959 is 95980285387.

It is a cyclic number.

It is not a de Polignac number, because 78358208959 - 2⁹ = 78358208447 is a prime.

It is a super-2 number, since 2×78358208959² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78358208959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78358208459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5288149 + ... + 5302945.

It is an arithmetic number, because the mean of its divisors is an integer number (5204826550).

Almost surely, 2^78358208959 is an apocalyptic number.

78358208959 is a deficient number, since it is larger than the sum of its proper divisors (4919015841).

78358208959 is a wasteful number, since it uses less digits than its factorization.

78358208959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17482.

The product of its (nonzero) digits is 43545600, while the sum is 64.

The spelling of 78358208959 in words is "seventy-eight billion, three hundred fifty-eight million, two hundred eight thousand, nine hundred fifty-nine".