8122691073 has 16 divisors (see below), whose sum is σ = 12378718080. Its totient is φ = 4641056256.

The previous prime is 8122691053. The next prime is 8122691089. The reversal of 8122691073 is 3701962218.

It is not a de Polignac number, because 8122691073 - 2⁵ = 8122691041 is a prime.

It is a super-2 number, since 2×8122691073² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8122691053) 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, 326023 + ... + 350051.

It is an arithmetic number, because the mean of its divisors is an integer number (773669880).

Almost surely, 2^8122691073 is an apocalyptic number.

It is an amenable number.

8122691073 is a deficient number, since it is larger than the sum of its proper divisors (4256027007).

8122691073 is a wasteful number, since it uses less digits than its factorization.

8122691073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40136.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 8122691073 is about 90125.9733539672. The cubic root of 8122691073 is about 2010.1724292065.

The spelling of 8122691073 in words is "eight billion, one hundred twenty-two million, six hundred ninety-one thousand, seventy-three".