8112197400 has 72 divisors (see below), whose sum is σ = 25154653020. Its totient is φ = 2162664320.

The previous prime is 8112197381. The next prime is 8112197449. The reversal of 8112197400 is 47912118.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2204362 + ... + 2208038.

Almost surely, 2^8112197400 is an apocalyptic number.

It is an amenable number.

8112197400 is an abundant number, since it is smaller than the sum of its proper divisors (17042455620).

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

8112197400 is an equidigital number, since it uses as much as digits as its factorization.

8112197400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7373 (or 3687 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 8112197400 is about 90067.7378421375. The cubic root of 8112197400 is about 2009.3064115172.

The spelling of 8112197400 in words is "eight billion, one hundred twelve million, one hundred ninety-seven thousand, four hundred".