5126308661 has 12 divisors (see below), whose sum is σ = 5462881632. Its totient is φ = 4809317544.

The previous prime is 5126308651. The next prime is 5126308669. The reversal of 5126308661 is 1668036215.

It is a de Polignac number, because none of the positive numbers 2^k-5126308661 is a prime.

It is a super-2 number, since 2×5126308661² = 52558080975687225842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5126308669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31751 + ... + 106116.

It is an arithmetic number, because the mean of its divisors is an integer number (455240136).

Almost surely, 2^5126308661 is an apocalyptic number.

It is an amenable number.

5126308661 is a deficient number, since it is larger than the sum of its proper divisors (336572971).

5126308661 is a wasteful number, since it uses less digits than its factorization.

5126308661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138008 (or 137989 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 5126308661 is about 71598.2448178725. The cubic root of 5126308661 is about 1724.2553572120.

The spelling of 5126308661 in words is "five billion, one hundred twenty-six million, three hundred eight thousand, six hundred sixty-one".