124004463138 has 40 divisors (see below), whose sum is σ = 277886578332. Its totient is φ = 41331142944.

The previous prime is 124004463127. The next prime is 124004463173. The reversal of 124004463138 is 831364400421.

124004463138 is a `hidden beast` number, since 12 + 4 + 0 + 0 + 4 + 4 + 631 + 3 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 122929475769 + 1074987369 = 350613^2 + 32787^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2272956 + ... + 2326872.

Almost surely, 2^124004463138 is an apocalyptic number.

124004463138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

124004463138 is an abundant number, since it is smaller than the sum of its proper divisors (153882115194).

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

124004463138 is a wasteful number, since it uses less digits than its factorization.

124004463138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68128 (or 68119 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

Adding to 124004463138 its reverse (831364400421), we get a palindrome (955368863559).

The spelling of 124004463138 in words is "one hundred twenty-four billion, four million, four hundred sixty-three thousand, one hundred thirty-eight".