8291157394 has 32 divisors (see below), whose sum is σ = 13494910464. Its totient is φ = 3797798400.

The previous prime is 8291157379. The next prime is 8291157401. The reversal of 8291157394 is 4937511928.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2044669 + ... + 2048719.

It is an arithmetic number, because the mean of its divisors is an integer number (421715952).

Almost surely, 2^8291157394 is an apocalyptic number.

8291157394 is a deficient number, since it is larger than the sum of its proper divisors (5203753070).

8291157394 is a wasteful number, since it uses less digits than its factorization.

8291157394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642.

The product of its digits is 544320, while the sum is 49.

The square root of 8291157394 is about 91055.7927536738. The cubic root of 8291157394 is about 2023.9745776372.

The spelling of 8291157394 in words is "eight billion, two hundred ninety-one million, one hundred fifty-seven thousand, three hundred ninety-four".