8172124972 has 12 divisors (see below), whose sum is σ = 15601329576. Its totient is φ = 3714602240.

The previous prime is 8172124969. The next prime is 8172124993. The reversal of 8172124972 is 2794212718.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92865013 + ... + 92865100.

It is an arithmetic number, because the mean of its divisors is an integer number (1300110798).

Almost surely, 2^8172124972 is an apocalyptic number.

It is an amenable number.

8172124972 is a deficient number, since it is larger than the sum of its proper divisors (7429204604).

8172124972 is a wasteful number, since it uses less digits than its factorization.

8172124972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185730128 (or 185730126 counting only the distinct ones).

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

The square root of 8172124972 is about 90399.8062608543. The cubic root of 8172124972 is about 2014.2420883905.

The spelling of 8172124972 in words is "eight billion, one hundred seventy-two million, one hundred twenty-four thousand, nine hundred seventy-two".