8172650388 has 48 divisors (see below), whose sum is σ = 21799145984. Its totient is φ = 2334463200.

The previous prime is 8172650383. The next prime is 8172650389. The reversal of 8172650388 is 8830562718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8172650383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419463 + ... + 438513.

Almost surely, 2^8172650388 is an apocalyptic number.

It is an amenable number.

8172650388 is an abundant number, since it is smaller than the sum of its proper divisors (13626495596).

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

8172650388 is a wasteful number, since it uses less digits than its factorization.

8172650388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24172 (or 24170 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 8172650388 is about 90402.7122823204. The cubic root of 8172650388 is about 2014.2852551452.

The spelling of 8172650388 in words is "eight billion, one hundred seventy-two million, six hundred fifty thousand, three hundred eighty-eight".