5630451881 has 4 divisors (see below), whose sum is σ = 5638696272. Its totient is φ = 5622207492.

The previous prime is 5630451859. The next prime is 5630451913. The reversal of 5630451881 is 1881540365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5630451881 - 2⁶ = 5630451817 is a prime.

It is a super-2 number, since 2×5630451881² = 63403976768512876322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5630451481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4121171 + ... + 4122536.

It is an arithmetic number, because the mean of its divisors is an integer number (1409674068).

Almost surely, 2^5630451881 is an apocalyptic number.

It is an amenable number.

5630451881 is a deficient number, since it is larger than the sum of its proper divisors (8244391).

5630451881 is an equidigital number, since it uses as much as digits as its factorization.

5630451881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8244390.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 5630451881 is about 75036.3370707819. The cubic root of 5630451881 is about 1779.0210373536.

The spelling of 5630451881 in words is "five billion, six hundred thirty million, four hundred fifty-one thousand, eight hundred eighty-one".