5717213991 has 24 divisors (see below), whose sum is σ = 8337465344. Its totient is φ = 3774995280.

The previous prime is 5717213977. The next prime is 5717214001. The reversal of 5717213991 is 1993127175.

It is a happy number.

5717213991 is a `hidden beast` number, since 571 + 72 + 1 + 3 + 9 + 9 + 1 = 666.

It is not a de Polignac number, because 5717213991 - 2¹³ = 5717205799 is a prime.

It is a super-2 number, since 2×5717213991² = 65373071637772296162, 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 (5717213941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 717270 + ... + 725196.

Almost surely, 2^5717213991 is an apocalyptic number.

5717213991 is a deficient number, since it is larger than the sum of its proper divisors (2620251353).

5717213991 is a wasteful number, since it uses less digits than its factorization.

5717213991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8691 (or 8688 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 5717213991 is about 75612.2608510022. The cubic root of 5717213991 is about 1788.1124043488.

The spelling of 5717213991 in words is "five billion, seven hundred seventeen million, two hundred thirteen thousand, nine hundred ninety-one".