79747066428 has 24 divisors (see below), whose sum is σ = 187050716160. Its totient is φ = 26443180080.

The previous prime is 79747066417. The next prime is 79747066459. The reversal of 79747066428 is 82466074797.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17394538 + ... + 17399121.

It is an arithmetic number, because the mean of its divisors is an integer number (7793779840).

Almost surely, 2^79747066428 is an apocalyptic number.

It is an amenable number.

79747066428 is an abundant number, since it is smaller than the sum of its proper divisors (107303649732).

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

79747066428 is a wasteful number, since it uses less digits than its factorization.

79747066428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34793857 (or 34793855 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 60.

The spelling of 79747066428 in words is "seventy-nine billion, seven hundred forty-seven million, sixty-six thousand, four hundred twenty-eight".