79543547628 has 12 divisors (see below), whose sum is σ = 185601611160. Its totient is φ = 26514515872.

The previous prime is 79543547627. The next prime is 79543547651. The reversal of 79543547628 is 82674534597.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (79543547623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3314314473 + ... + 3314314496.

It is an arithmetic number, because the mean of its divisors is an integer number (15466800930).

Almost surely, 2^79543547628 is an apocalyptic number.

It is an amenable number.

79543547628 is an abundant number, since it is smaller than the sum of its proper divisors (106058063532).

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

79543547628 is a wasteful number, since it uses less digits than its factorization.

79543547628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6628628976 (or 6628628974 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 60.

The spelling of 79543547628 in words is "seventy-nine billion, five hundred forty-three million, five hundred forty-seven thousand, six hundred twenty-eight".