16279516875 has 20 divisors (see below), whose sum is σ = 27123848840. Its totient is φ = 8682408000.

The previous prime is 16279516871. The next prime is 16279516933. The reversal of 16279516875 is 57861597261.

It is not a de Polignac number, because 16279516875 - 2² = 16279516871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16279516871) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4339330 + ... + 4343079.

It is an arithmetic number, because the mean of its divisors is an integer number (1356192442).

Almost surely, 2^16279516875 is an apocalyptic number.

16279516875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16279516875 is a deficient number, since it is larger than the sum of its proper divisors (10844331965).

16279516875 is an frugal number, since it uses more digits than its factorization.

16279516875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8682432 (or 8682417 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 57.

The spelling of 16279516875 in words is "sixteen billion, two hundred seventy-nine million, five hundred sixteen thousand, eight hundred seventy-five".