5156246891 has 2 divisors, whose sum is σ = 5156246892. Its totient is φ = 5156246890.

The previous prime is 5156246869. The next prime is 5156246933. The reversal of 5156246891 is 1986426515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5156246891 - 2¹⁸ = 5155984747 is a prime.

It is not a weakly prime, because it can be changed into another prime (5156446891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578123445 + 2578123446.

It is an arithmetic number, because the mean of its divisors is an integer number (2578123446).

Almost surely, 2^5156246891 is an apocalyptic number.

5156246891 is a deficient number, since it is larger than the sum of its proper divisors (1).

5156246891 is an equidigital number, since it uses as much as digits as its factorization.

5156246891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 47.

The square root of 5156246891 is about 71807.0114334248. The cubic root of 5156246891 is about 1727.6054602784.

The spelling of 5156246891 in words is "five billion, one hundred fifty-six million, two hundred forty-six thousand, eight hundred ninety-one".