8091619722 has 12 divisors (see below), whose sum is σ = 17531842770. Its totient is φ = 2697206568.

The previous prime is 8091619709. The next prime is 8091619741. The reversal of 8091619722 is 2279161908.

8091619722 is a `hidden beast` number, since 8 + 0 + 9 + 1 + 619 + 7 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5791362201 + 2300257521 = 76101^2 + 47961^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 224767197 + ... + 224767232.

Almost surely, 2^8091619722 is an apocalyptic number.

8091619722 is an abundant number, since it is smaller than the sum of its proper divisors (9440223048).

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

8091619722 is a wasteful number, since it uses less digits than its factorization.

8091619722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449534437 (or 449534434 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 8091619722 is about 89953.4308517468. The cubic root of 8091619722 is about 2007.6060144373.

The spelling of 8091619722 in words is "eight billion, ninety-one million, six hundred nineteen thousand, seven hundred twenty-two".