78563626628 has 24 divisors (see below), whose sum is σ = 142791465600. Its totient is φ = 37794397088.

The previous prime is 78563626627. The next prime is 78563626637. The reversal of 78563626628 is 82662636587.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is not an unprimeable number, because it can be changed into a prime (78563626627) 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, 3530363 + ... + 3552546.

It is an arithmetic number, because the mean of its divisors is an integer number (5949644400).

Almost surely, 2^78563626628 is an apocalyptic number.

It is an amenable number.

78563626628 is a deficient number, since it is larger than the sum of its proper divisors (64227838972).

78563626628 is a wasteful number, since it uses less digits than its factorization.

78563626628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7083019 (or 7083017 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 59.

The spelling of 78563626628 in words is "seventy-eight billion, five hundred sixty-three million, six hundred twenty-six thousand, six hundred twenty-eight".