8153918563 has 16 divisors (see below), whose sum is σ = 9542292480. Its totient is φ = 6822216576.

The previous prime is 8153918557. The next prime is 8153918569. The reversal of 8153918563 is 3658193518.

It is an interprime number because it is at equal distance from previous prime (8153918557) and next prime (8153918569).

It is not a de Polignac number, because 8153918563 - 2¹³ = 8153910371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8153918569) 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, 91995 + ... + 157387.

It is an arithmetic number, because the mean of its divisors is an integer number (596393280).

Almost surely, 2^8153918563 is an apocalyptic number.

8153918563 is a deficient number, since it is larger than the sum of its proper divisors (1388373917).

8153918563 is a wasteful number, since it uses less digits than its factorization.

8153918563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65826.

The product of its digits is 777600, while the sum is 49.

The square root of 8153918563 is about 90299.0507314446. The cubic root of 8153918563 is about 2012.7451549041.

The spelling of 8153918563 in words is "eight billion, one hundred fifty-three million, nine hundred eighteen thousand, five hundred sixty-three".