2581367152 has 80 divisors (see below), whose sum is σ = 6200978112. Its totient is φ = 1013667840.

The previous prime is 2581367143. The next prime is 2581367167. The reversal of 2581367152 is 2517631852.

It is a super-2 number, since 2×2581367152² = 13326912746849182208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193002 + ... + 205942.

Almost surely, 2^2581367152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2581367152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3100489056).

2581367152 is an abundant number, since it is smaller than the sum of its proper divisors (3619610960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2581367152 is a wasteful number, since it uses less digits than its factorization.

2581367152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13106 (or 13100 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 2581367152 is about 50807.1565037840. The cubic root of 2581367152 is about 1371.7761876841.

The spelling of 2581367152 in words is "two billion, five hundred eighty-one million, three hundred sixty-seven thousand, one hundred fifty-two".