2681500064 has 24 divisors (see below), whose sum is σ = 5281097220. Its totient is φ = 1340269056.

The previous prime is 2681500061. The next prime is 2681500069. The reversal of 2681500064 is 4600051862.

2681500064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2664624400 + 16875664 = 51620^2 + 4108^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 2681500064.

It is not an unprimeable number, because it can be changed into a prime (2681500061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86012 + ... + 112964.

Almost surely, 2^2681500064 is an apocalyptic number.

It is an amenable number.

2681500064 is a deficient number, since it is larger than the sum of its proper divisors (2599597156).

2681500064 is a wasteful number, since it uses less digits than its factorization.

2681500064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30072 (or 30064 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 2681500064 is about 51783.2025274606. The cubic root of 2681500064 is about 1389.2890216975.

The spelling of 2681500064 in words is "two billion, six hundred eighty-one million, five hundred thousand, sixty-four".