5611881144 has 32 divisors (see below), whose sum is σ = 14482275840. Its totient is φ = 1810284000.

The previous prime is 5611881127. The next prime is 5611881167. The reversal of 5611881144 is 4411881165.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3770682 + ... + 3772169.

It is an arithmetic number, because the mean of its divisors is an integer number (452571120).

Almost surely, 2^5611881144 is an apocalyptic number.

It is an amenable number.

5611881144 is an abundant number, since it is smaller than the sum of its proper divisors (8870394696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5611881144 is a wasteful number, since it uses less digits than its factorization.

5611881144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7542891 (or 7542887 counting only the distinct ones).

The product of its digits is 30720, while the sum is 39.

The square root of 5611881144 is about 74912.4899065570. The cubic root of 5611881144 is about 1777.0629872343.

The spelling of 5611881144 in words is "five billion, six hundred eleven million, eight hundred eighty-one thousand, one hundred forty-four".