5642958709 has 2 divisors, whose sum is σ = 5642958710. Its totient is φ = 5642958708.

The previous prime is 5642958691. The next prime is 5642958773. The reversal of 5642958709 is 9078592465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4170318084 + 1472640625 = 64578^2 + 38375^2 .

It is a cyclic number.

It is not a de Polignac number, because 5642958709 - 2⁹ = 5642958197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5642958709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5642958109) 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, 2821479354 + 2821479355.

It is an arithmetic number, because the mean of its divisors is an integer number (2821479355).

Almost surely, 2^5642958709 is an apocalyptic number.

It is an amenable number.

5642958709 is a deficient number, since it is larger than the sum of its proper divisors (1).

5642958709 is an equidigital number, since it uses as much as digits as its factorization.

5642958709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The square root of 5642958709 is about 75119.6293188405. The cubic root of 5642958709 is about 1780.3372997332.

The spelling of 5642958709 in words is "five billion, six hundred forty-two million, nine hundred fifty-eight thousand, seven hundred nine".