8681247523513 has 32 divisors (see below), whose sum is σ = 8953669435392. Its totient is φ = 8412381230400.

The previous prime is 8681247523471. The next prime is 8681247523519. The reversal of 8681247523513 is 3153257421868.

It is not a de Polignac number, because 8681247523513 - 2²⁵ = 8681213969081 is a prime.

It is a super-2 number, since 2×8681247523513² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8681247523519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3279653956 + ... + 3279656602.

It is an arithmetic number, because the mean of its divisors is an integer number (279802169856).

Almost surely, 2^{8681247523513} is an apocalyptic number.

It is an amenable number.

8681247523513 is a deficient number, since it is larger than the sum of its proper divisors (272421911879).

8681247523513 is a wasteful number, since it uses less digits than its factorization.

8681247523513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4045.

The product of its digits is 9676800, while the sum is 55.

The spelling of 8681247523513 in words is "eight trillion, six hundred eighty-one billion, two hundred forty-seven million, five hundred twenty-three thousand, five hundred thirteen".