6142643880 has 128 divisors (see below), whose sum is σ = 18773441280. Its totient is φ = 1607454720.

The previous prime is 6142643807. The next prime is 6142643887. The reversal of 6142643880 is 883462416.

It is not an unprimeable number, because it can be changed into a prime (6142643887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4735392 + ... + 4736688.

It is an arithmetic number, because the mean of its divisors is an integer number (146667510).

Almost surely, 2^6142643880 is an apocalyptic number.

6142643880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6142643880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9386720640).

6142643880 is an abundant number, since it is smaller than the sum of its proper divisors (12630797400).

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

6142643880 is a wasteful number, since it uses less digits than its factorization.

6142643880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019 (or 2015 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 6142643880 is about 78375.0207655475. The cubic root of 6142643880 is about 1831.4080238399.

The spelling of 6142643880 in words is "six billion, one hundred forty-two million, six hundred forty-three thousand, eight hundred eighty".