8196131625 has 64 divisors (see below), whose sum is σ = 15002088192. Its totient is φ = 3973640000.

The previous prime is 8196131623. The next prime is 8196131639. The reversal of 8196131625 is 5261316918.

It is not a de Polignac number, because 8196131625 - 2¹ = 8196131623 is a prime.

It is a super-2 number, since 2×8196131625² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8196131623) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 490915 + ... + 507335.

It is an arithmetic number, because the mean of its divisors is an integer number (234407628).

Almost surely, 2^8196131625 is an apocalyptic number.

It is an amenable number.

8196131625 is a deficient number, since it is larger than the sum of its proper divisors (6805956567).

8196131625 is a wasteful number, since it uses less digits than its factorization.

8196131625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16472 (or 16440 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 8196131625 is about 90532.4893339402. The cubic root of 8196131625 is about 2016.2125239998.

The spelling of 8196131625 in words is "eight billion, one hundred ninety-six million, one hundred thirty-one thousand, six hundred twenty-five".