79102142728 has 32 divisors (see below), whose sum is σ = 170584257600. Its totient is φ = 33684985152.

The previous prime is 79102142701. The next prime is 79102142737. The reversal of 79102142728 is 82724120197.

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, 4489738 + ... + 4507321.

It is an arithmetic number, because the mean of its divisors is an integer number (5330758050).

Almost surely, 2^79102142728 is an apocalyptic number.

It is an amenable number.

79102142728 is an abundant number, since it is smaller than the sum of its proper divisors (91482114872).

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

79102142728 is a wasteful number, since it uses less digits than its factorization.

79102142728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8997229 (or 8997225 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 79102142728 in words is "seventy-nine billion, one hundred two million, one hundred forty-two thousand, seven hundred twenty-eight".