5780721637 has 2 divisors, whose sum is σ = 5780721638. Its totient is φ = 5780721636.

The previous prime is 5780721623. The next prime is 5780721643. The reversal of 5780721637 is 7361270875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5715208801 + 65512836 = 75599^2 + 8094^2 .

It is a cyclic number.

It is not a de Polignac number, because 5780721637 - 2¹⁵ = 5780688869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5780722637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2890360818 + 2890360819.

It is an arithmetic number, because the mean of its divisors is an integer number (2890360819).

Almost surely, 2^5780721637 is an apocalyptic number.

It is an amenable number.

5780721637 is a deficient number, since it is larger than the sum of its proper divisors (1).

5780721637 is an equidigital number, since it uses as much as digits as its factorization.

5780721637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 493920, while the sum is 46.

The square root of 5780721637 is about 76031.0570556533. The cubic root of 5780721637 is about 1794.7089103629.

The spelling of 5780721637 in words is "five billion, seven hundred eighty million, seven hundred twenty-one thousand, six hundred thirty-seven".