8152945391 has 16 divisors (see below), whose sum is σ = 9094802400. Its totient is φ = 7263157248.

The previous prime is 8152945379. The next prime is 8152945441. The reversal of 8152945391 is 1935492518.

It is not a de Polignac number, because 8152945391 - 2²⁶ = 8085836527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8152915391) 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, 381395 + ... + 402203.

It is an arithmetic number, because the mean of its divisors is an integer number (568425150).

Almost surely, 2^8152945391 is an apocalyptic number.

8152945391 is a deficient number, since it is larger than the sum of its proper divisors (941857009).

8152945391 is a wasteful number, since it uses less digits than its factorization.

8152945391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22058.

The product of its digits is 388800, while the sum is 47.

The square root of 8152945391 is about 90293.6619647249. The cubic root of 8152945391 is about 2012.6650778571.

The spelling of 8152945391 in words is "eight billion, one hundred fifty-two million, nine hundred forty-five thousand, three hundred ninety-one".