2591126651 has 8 divisors (see below), whose sum is σ = 2656852800. Its totient is φ = 2525520960.

The previous prime is 2591126647. The next prime is 2591126693. The reversal of 2591126651 is 1566211952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2591126651 - 2² = 2591126647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2591128651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14270 + ... + 73388.

It is an arithmetic number, because the mean of its divisors is an integer number (332106600).

Almost surely, 2^2591126651 is an apocalyptic number.

2591126651 is a deficient number, since it is larger than the sum of its proper divisors (65726149).

2591126651 is a wasteful number, since it uses less digits than its factorization.

2591126651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60229.

The product of its digits is 32400, while the sum is 38.

The square root of 2591126651 is about 50903.1104255919. The cubic root of 2591126651 is about 1373.5027936344.

The spelling of 2591126651 in words is "two billion, five hundred ninety-one million, one hundred twenty-six thousand, six hundred fifty-one".