5856656381 has 2 divisors, whose sum is σ = 5856656382. Its totient is φ = 5856656380.

The previous prime is 5856656371. The next prime is 5856656411. The reversal of 5856656381 is 1836566585.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4862830756 + 993825625 = 69734^2 + 31525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5856656381 is a prime.

It is a super-2 number, since 2×5856656381² = 68600847930216034322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5856656371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2928328190 + 2928328191.

It is an arithmetic number, because the mean of its divisors is an integer number (2928328191).

Almost surely, 2^5856656381 is an apocalyptic number.

It is an amenable number.

5856656381 is a deficient number, since it is larger than the sum of its proper divisors (1).

5856656381 is an equidigital number, since it uses as much as digits as its factorization.

5856656381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184000, while the sum is 53.

The square root of 5856656381 is about 76528.7944567272. The cubic root of 5856656381 is about 1802.5330982693.

The spelling of 5856656381 in words is "five billion, eight hundred fifty-six million, six hundred fifty-six thousand, three hundred eighty-one".