8390254316081 has 8 divisors (see below), whose sum is σ = 9228649376928. Its totient is φ = 7627503922500.

The previous prime is 8390254315987. The next prime is 8390254316089. The reversal of 8390254316081 is 1806134520938.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-8390254316081 is a prime.

It is a super-2 number, since 2×8390254316081² (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 (8390254316089) 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, 3151859795 + ... + 3151862456.

It is an arithmetic number, because the mean of its divisors is an integer number (1153581172116).

Almost surely, 2^{8390254316081} is an apocalyptic number.

It is an amenable number.

8390254316081 is a deficient number, since it is larger than the sum of its proper divisors (838395060847).

8390254316081 is an equidigital number, since it uses as much as digits as its factorization.

8390254316081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6303722284 (or 6303722262 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 8390254316081 in words is "eight trillion, three hundred ninety billion, two hundred fifty-four million, three hundred sixteen thousand, eighty-one".