15720673708 has 24 divisors (see below), whose sum is σ = 27720378000. Its totient is φ = 7800612288.

The previous prime is 15720673667. The next prime is 15720673729. The reversal of 15720673708 is 80737602751.

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, 1973718 + ... + 1981666.

It is an arithmetic number, because the mean of its divisors is an integer number (1155015750).

Almost surely, 2^15720673708 is an apocalyptic number.

It is an amenable number.

15720673708 is a deficient number, since it is larger than the sum of its proper divisors (11999704292).

15720673708 is a wasteful number, since it uses less digits than its factorization.

15720673708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11649 (or 11647 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 46.

The spelling of 15720673708 in words is "fifteen billion, seven hundred twenty million, six hundred seventy-three thousand, seven hundred eight".