5721951637 has 2 divisors, whose sum is σ = 5721951638. Its totient is φ = 5721951636.

The previous prime is 5721951623. The next prime is 5721951659. The reversal of 5721951637 is 7361591275.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3411611281 + 2310340356 = 58409^2 + 48066^2 .

It is a cyclic number.

It is not a de Polignac number, because 5721951637 - 2²⁷ = 5587733909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5721951607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2860975818 + 2860975819.

It is an arithmetic number, because the mean of its divisors is an integer number (2860975819).

Almost surely, 2^5721951637 is an apocalyptic number.

It is an amenable number.

5721951637 is a deficient number, since it is larger than the sum of its proper divisors (1).

5721951637 is an equidigital number, since it uses as much as digits as its factorization.

5721951637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900, while the sum is 46.

The square root of 5721951637 is about 75643.5829201658. The cubic root of 5721951637 is about 1788.6061824185.

The spelling of 5721951637 in words is "five billion, seven hundred twenty-one million, nine hundred fifty-one thousand, six hundred thirty-seven".