8113897897 has 8 divisors (see below), whose sum is σ = 9462272000. Its totient is φ = 6954769332.

The previous prime is 8113897861. The next prime is 8113897901. The reversal of 8113897897 is 7987983118.

It is not a de Polignac number, because 8113897897 - 2¹¹ = 8113895849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8113897097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11827497 + ... + 11828182.

It is an arithmetic number, because the mean of its divisors is an integer number (1182784000).

Almost surely, 2^8113897897 is an apocalyptic number.

It is an amenable number.

8113897897 is a deficient number, since it is larger than the sum of its proper divisors (1348374103).

8113897897 is an equidigital number, since it uses as much as digits as its factorization.

8113897897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23655700 (or 23655686 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 61.

The square root of 8113897897 is about 90077.1774480084. The cubic root of 8113897897 is about 2009.4468001459.

The spelling of 8113897897 in words is "eight billion, one hundred thirteen million, eight hundred ninety-seven thousand, eight hundred ninety-seven".