8081256045 has 16 divisors (see below), whose sum is σ = 12932076672. Its totient is φ = 4309314240.

The previous prime is 8081256023. The next prime is 8081256047. The reversal of 8081256045 is 5406521808.

It is not a de Polignac number, because 8081256045 - 2⁵ = 8081256013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8081255994 and 8081256012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081256047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62199 + ... + 141531.

It is an arithmetic number, because the mean of its divisors is an integer number (808254792).

Almost surely, 2^8081256045 is an apocalyptic number.

It is an amenable number.

8081256045 is a deficient number, since it is larger than the sum of its proper divisors (4850820627).

8081256045 is a wasteful number, since it uses less digits than its factorization.

8081256045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86132.

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 8081256045 is about 89895.8066040903. The cubic root of 8081256045 is about 2006.7485400745.

The spelling of 8081256045 in words is "eight billion, eighty-one million, two hundred fifty-six thousand, forty-five".