124438939872 has 144 divisors (see below), whose sum is σ = 372329516160. Its totient is φ = 36273609216.

The previous prime is 124438939871. The next prime is 124438939873. The reversal of 124438939872 is 278939834421.

It is an interprime number because it is at equal distance from previous prime (124438939871) and next prime (124438939873).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124438939871) 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 23 ways as a sum of consecutive naturals, for example, 106413 + ... + 510099.

It is an arithmetic number, because the mean of its divisors is an integer number (2585621640).

Almost surely, 2^124438939872 is an apocalyptic number.

124438939872 is a gapful number since it is divisible by the number (12) 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 124438939872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186164758080).

124438939872 is an abundant number, since it is smaller than the sum of its proper divisors (247890576288).

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

124438939872 is a wasteful number, since it uses less digits than its factorization.

124438939872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403745 (or 403724 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 60.

The spelling of 124438939872 in words is "one hundred twenty-four billion, four hundred thirty-eight million, nine hundred thirty-nine thousand, eight hundred seventy-two".