5623671761 has 2 divisors, whose sum is σ = 5623671762. Its totient is φ = 5623671760.

The previous prime is 5623671749. The next prime is 5623671811. The reversal of 5623671761 is 1671763265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5621250625 + 2421136 = 74975^2 + 1556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5623671761 is a prime.

It is a super-2 number, since 2×5623671761² = 63251368150937682242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5623671731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2811835880 + 2811835881.

It is an arithmetic number, because the mean of its divisors is an integer number (2811835881).

Almost surely, 2^5623671761 is an apocalyptic number.

It is an amenable number.

5623671761 is a deficient number, since it is larger than the sum of its proper divisors (1).

5623671761 is an equidigital number, since it uses as much as digits as its factorization.

5623671761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 44.

The square root of 5623671761 is about 74991.1445505401. The cubic root of 5623671761 is about 1778.3066588727.

The spelling of 5623671761 in words is "five billion, six hundred twenty-three million, six hundred seventy-one thousand, seven hundred sixty-one".