5156229691 has 2 divisors, whose sum is σ = 5156229692. Its totient is φ = 5156229690.

The previous prime is 5156229643. The next prime is 5156229703. The reversal of 5156229691 is 1969226515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5156229691 - 2⁷ = 5156229563 is a prime.

It is not a weakly prime, because it can be changed into another prime (5156239691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578114845 + 2578114846.

It is an arithmetic number, because the mean of its divisors is an integer number (2578114846).

Almost surely, 2^5156229691 is an apocalyptic number.

5156229691 is a deficient number, since it is larger than the sum of its proper divisors (1).

5156229691 is an equidigital number, since it uses as much as digits as its factorization.

5156229691 is an evil number, because the sum of its binary digits is even.

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

The square root of 5156229691 is about 71806.8916678615. The cubic root of 5156229691 is about 1727.6035393174.

The spelling of 5156229691 in words is "five billion, one hundred fifty-six million, two hundred twenty-nine thousand, six hundred ninety-one".