5111000091 has 6 divisors (see below), whose sum is σ = 7382555700. Its totient is φ = 3407333388.

The previous prime is 5111000087. The next prime is 5111000119. The reversal of 5111000091 is 1900001115.

It is not a de Polignac number, because 5111000091 - 2² = 5111000087 is a prime.

It is a super-2 number, since 2×5111000091² = 52244643860404016562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5111005091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 283944441 + ... + 283944458.

It is an arithmetic number, because the mean of its divisors is an integer number (1230425950).

Almost surely, 2^5111000091 is an apocalyptic number.

5111000091 is a deficient number, since it is larger than the sum of its proper divisors (2271555609).

5111000091 is a wasteful number, since it uses less digits than its factorization.

5111000091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567888905 (or 567888902 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 18.

The square root of 5111000091 is about 71491.2588433020. The cubic root of 5111000091 is about 1722.5372786760.

The spelling of 5111000091 in words is "five billion, one hundred eleven million, ninety-one", and thus it is an aban number.