2591136072 has 108 divisors (see below), whose sum is σ = 8172937305. Its totient is φ = 739460736.

The previous prime is 2591136059. The next prime is 2591136103. The reversal of 2591136072 is 2706311952.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

2591136072 is a `hidden beast` number, since 2 + 591 + 1 + 3 + 60 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1970827236 + 620308836 = 44394^2 + 24906^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=35994.

It is a super-2 number, since 2×2591136072² = 13427972287239178368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3023068 + ... + 3023924.

Almost surely, 2^2591136072 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 2591136072

2591136072 is an abundant number, since it is smaller than the sum of its proper divisors (5581801233).

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

2591136072 is an equidigital number, since it uses as much as digits as its factorization.

2591136072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 2591136072 is about 50903.2029640572. The cubic root of 2591136072 is about 1373.5044582583.

The spelling of 2591136072 in words is "two billion, five hundred ninety-one million, one hundred thirty-six thousand, seventy-two".