8171621496 has 48 divisors (see below), whose sum is σ = 22951164600. Its totient is φ = 2723873184.

The previous prime is 8171621459. The next prime is 8171621501. The reversal of 8171621496 is 6941261718.

8171621496 is a `hidden beast` number, since 8 + 17 + 1 + 621 + 4 + 9 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2099811 + ... + 2103698.

Almost surely, 2^8171621496 is an apocalyptic number.

It is an amenable number.

8171621496 is an abundant number, since it is smaller than the sum of its proper divisors (14779543104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8171621496 is a wasteful number, since it uses less digits than its factorization.

8171621496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4203530 (or 4203514 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 8171621496 is about 90397.0214996047. The cubic root of 8171621496 is about 2014.2007224308.

The spelling of 8171621496 in words is "eight billion, one hundred seventy-one million, six hundred twenty-one thousand, four hundred ninety-six".