78513173202 has 32 divisors (see below), whose sum is σ = 159398004672. Its totient is φ = 25775918784.

The previous prime is 78513173197. The next prime is 78513173203. The reversal of 78513173202 is 20237131587.

It is not an unprimeable number, because it can be changed into a prime (78513173203) 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, 2886088 + ... + 2913164.

It is an arithmetic number, because the mean of its divisors is an integer number (4981187646).

Almost surely, 2^78513173202 is an apocalyptic number.

78513173202 is an abundant number, since it is smaller than the sum of its proper divisors (80884831470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78513173202 is a wasteful number, since it uses less digits than its factorization.

78513173202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34362.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 78513173202 in words is "seventy-eight billion, five hundred thirteen million, one hundred seventy-three thousand, two hundred two".