15979928198 has 16 divisors (see below), whose sum is σ = 26167346016. Its totient is φ = 7274318400.

The previous prime is 15979928183. The next prime is 15979928249. The reversal of 15979928198 is 89182997951.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4207778 + ... + 4211573.

It is an arithmetic number, because the mean of its divisors is an integer number (1635459126).

Almost surely, 2^15979928198 is an apocalyptic number.

15979928198 is a deficient number, since it is larger than the sum of its proper divisors (10187417818).

15979928198 is a wasteful number, since it uses less digits than its factorization.

15979928198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8419439.

The product of its digits is 29393280, while the sum is 68.

The spelling of 15979928198 in words is "fifteen billion, nine hundred seventy-nine million, nine hundred twenty-eight thousand, one hundred ninety-eight".