5164086491 has 2 divisors, whose sum is σ = 5164086492. Its totient is φ = 5164086490.

The previous prime is 5164086449. The next prime is 5164086517. The reversal of 5164086491 is 1946804615.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5164086491 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (5164086091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2582043245 + 2582043246.

It is an arithmetic number, because the mean of its divisors is an integer number (2582043246).

Almost surely, 2^5164086491 is an apocalyptic number.

5164086491 is a deficient number, since it is larger than the sum of its proper divisors (1).

5164086491 is an equidigital number, since it uses as much as digits as its factorization.

5164086491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 5164086491 is about 71861.5786843011. The cubic root of 5164086491 is about 1728.4805720824.

The spelling of 5164086491 in words is "five billion, one hundred sixty-four million, eighty-six thousand, four hundred ninety-one".