5811993837 has 64 divisors (see below), whose sum is σ = 9401835520. Its totient is φ = 3527193600.

The previous prime is 5811993799. The next prime is 5811993839. The reversal of 5811993837 is 7383991185.

It is not a de Polignac number, because 5811993837 - 2⁶ = 5811993773 is a prime.

It is a super-2 number, since 2×5811993837² = 67558544722651965138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5811993839) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10742787 + ... + 10743327.

It is an arithmetic number, because the mean of its divisors is an integer number (146903680).

Almost surely, 2^5811993837 is an apocalyptic number.

It is an amenable number.

5811993837 is a deficient number, since it is larger than the sum of its proper divisors (3589841683).

5811993837 is a wasteful number, since it uses less digits than its factorization.

5811993837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931 (or 925 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 5811993837 is about 76236.4337898882. The cubic root of 5811993837 is about 1797.9393947368.

The spelling of 5811993837 in words is "five billion, eight hundred eleven million, nine hundred ninety-three thousand, eight hundred thirty-seven".