78395634795 has 16 divisors (see below), whose sum is σ = 129479242752. Its totient is φ = 40462262880.

The previous prime is 78395634769. The next prime is 78395634797. The reversal of 78395634795 is 59743659387.

It is not a de Polignac number, because 78395634795 - 2⁶ = 78395634731 is a prime.

It is a super-2 number, since 2×78395634795² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78395634797) 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, 84295917 + ... + 84296846.

It is an arithmetic number, because the mean of its divisors is an integer number (8092452672).

Almost surely, 2^78395634795 is an apocalyptic number.

78395634795 is a deficient number, since it is larger than the sum of its proper divisors (51083607957).

78395634795 is a wasteful number, since it uses less digits than its factorization.

78395634795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168592802.

The product of its digits is 171460800, while the sum is 66.

The spelling of 78395634795 in words is "seventy-eight billion, three hundred ninety-five million, six hundred thirty-four thousand, seven hundred ninety-five".