5161094891 has 2 divisors, whose sum is σ = 5161094892. Its totient is φ = 5161094890.

The previous prime is 5161094879. The next prime is 5161094899. The reversal of 5161094891 is 1984901615.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5161094891 is a prime.

It is not a weakly prime, because it can be changed into another prime (5161094899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2580547445 + 2580547446.

It is an arithmetic number, because the mean of its divisors is an integer number (2580547446).

Almost surely, 2^5161094891 is an apocalyptic number.

5161094891 is a deficient number, since it is larger than the sum of its proper divisors (1).

5161094891 is an equidigital number, since it uses as much as digits as its factorization.

5161094891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 44.

The square root of 5161094891 is about 71840.7606515967. The cubic root of 5161094891 is about 1728.1467330236.

The spelling of 5161094891 in words is "five billion, one hundred sixty-one million, ninety-four thousand, eight hundred ninety-one".