5721951659 has 2 divisors, whose sum is σ = 5721951660. Its totient is φ = 5721951658.

The previous prime is 5721951637. The next prime is 5721951667. The reversal of 5721951659 is 9561591275.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5721951659 is a prime.

It is not a weakly prime, because it can be changed into another prime (5721251659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2860975829 + 2860975830.

It is an arithmetic number, because the mean of its divisors is an integer number (2860975830).

Almost surely, 2^5721951659 is an apocalyptic number.

5721951659 is a deficient number, since it is larger than the sum of its proper divisors (1).

5721951659 is an equidigital number, since it uses as much as digits as its factorization.

5721951659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 850500, while the sum is 50.

The square root of 5721951659 is about 75643.5830655846. The cubic root of 5721951659 is about 1788.6061847108.

The spelling of 5721951659 in words is "five billion, seven hundred twenty-one million, nine hundred fifty-one thousand, six hundred fifty-nine".