5642309917 has 2 divisors, whose sum is σ = 5642309918. Its totient is φ = 5642309916.

The previous prime is 5642309891. The next prime is 5642309921. The reversal of 5642309917 is 7199032465.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3323983716 + 2318326201 = 57654^2 + 48149^2 .

It is a cyclic number.

It is not a de Polignac number, because 5642309917 - 2⁷ = 5642309789 is a prime.

It is a super-2 number, since 2×5642309917² = 63671322398953093778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5642304917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2821154958 + 2821154959.

It is an arithmetic number, because the mean of its divisors is an integer number (2821154959).

Almost surely, 2^5642309917 is an apocalyptic number.

It is an amenable number.

5642309917 is a deficient number, since it is larger than the sum of its proper divisors (1).

5642309917 is an equidigital number, since it uses as much as digits as its factorization.

5642309917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 5642309917 is about 75115.3108027917. The cubic root of 5642309917 is about 1780.2690664459.

The spelling of 5642309917 in words is "five billion, six hundred forty-two million, three hundred nine thousand, nine hundred seventeen".