2591661952 has 32 divisors (see below), whose sum is σ = 5632450200. Its totient is φ = 1178027520.

The previous prime is 2591661923. The next prime is 2591661967.

2591661952 is nontrivially palindromic in base 10.

2591661952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918927 + ... + 921742.

Almost surely, 2^2591661952 is an apocalyptic number.

2591661952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2591661952 is an abundant number, since it is smaller than the sum of its proper divisors (3040788248).

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

2591661952 is a wasteful number, since it uses less digits than its factorization.

2591661952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840694 (or 1840682 counting only the distinct ones).

The product of its digits is 291600, while the sum is 46.

The square root of 2591661952 is about 50908.3681922727. The cubic root of 2591661952 is about 1373.5973711282.

The spelling of 2591661952 in words is "two billion, five hundred ninety-one million, six hundred sixty-one thousand, nine hundred fifty-two".