5165851091 has 2 divisors, whose sum is σ = 5165851092. Its totient is φ = 5165851090.

The previous prime is 5165851087. The next prime is 5165851123. The reversal of 5165851091 is 1901585615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5165851091 - 2² = 5165851087 is a prime.

It is not a weakly prime, because it can be changed into another prime (5165851021) 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, 2582925545 + 2582925546.

It is an arithmetic number, because the mean of its divisors is an integer number (2582925546).

Almost surely, 2^5165851091 is an apocalyptic number.

5165851091 is a deficient number, since it is larger than the sum of its proper divisors (1).

5165851091 is an equidigital number, since it uses as much as digits as its factorization.

5165851091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 41.

The square root of 5165851091 is about 71873.8554065385. The cubic root of 5165851091 is about 1728.6774271298.

The spelling of 5165851091 in words is "five billion, one hundred sixty-five million, eight hundred fifty-one thousand, ninety-one".