8101281015 has 24 divisors (see below), whose sum is σ = 14562304848. Its totient is φ = 4320682560.

The previous prime is 8101280989. The next prime is 8101281073. The reversal of 8101281015 is 5101821018.

It is not a de Polignac number, because 8101281015 - 2¹² = 8101276919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 8101281015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3332646 + ... + 3335075.

It is an arithmetic number, because the mean of its divisors is an integer number (606762702).

Almost surely, 2^8101281015 is an apocalyptic number.

8101281015 is a deficient number, since it is larger than the sum of its proper divisors (6461023833).

8101281015 is an equidigital number, since it uses as much as digits as its factorization.

8101281015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667741 (or 6667729 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 27.

The square root of 8101281015 is about 90007.1164686437. The cubic root of 8101281015 is about 2008.4047154869.

The spelling of 8101281015 in words is "eight billion, one hundred one million, two hundred eighty-one thousand, fifteen".