6144239881 has 12 divisors (see below), whose sum is σ = 6766007760. Its totient is φ = 5575468080.

The previous prime is 6144239861. The next prime is 6144239903. The reversal of 6144239881 is 1889324416.

It is not a de Polignac number, because 6144239881 - 2¹³ = 6144231689 is a prime.

It is a super-2 number, since 2×6144239881² = 75503367430541788322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6144239851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298135 + ... + 318076.

It is an arithmetic number, because the mean of its divisors is an integer number (563833980).

Almost surely, 2^6144239881 is an apocalyptic number.

It is an amenable number.

6144239881 is a deficient number, since it is larger than the sum of its proper divisors (621767879).

6144239881 is a wasteful number, since it uses less digits than its factorization.

6144239881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616296 (or 616283 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 6144239881 is about 78385.2019261289. The cubic root of 6144239881 is about 1831.5666241638.

The spelling of 6144239881 in words is "six billion, one hundred forty-four million, two hundred thirty-nine thousand, eight hundred eighty-one".