124407557742 has 32 divisors (see below), whose sum is σ = 267972526080. Its totient is φ = 38276707680.

The previous prime is 124407557741. The next prime is 124407557753. The reversal of 124407557742 is 247755704421.

It is a junction number, because it is equal to n+sod(n) for n = 124407557691 and 124407557700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124407557741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375059 + ... + 1462737.

It is an arithmetic number, because the mean of its divisors is an integer number (8374141440).

Almost surely, 2^124407557742 is an apocalyptic number.

124407557742 is an abundant number, since it is smaller than the sum of its proper divisors (143564968338).

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

124407557742 is a wasteful number, since it uses less digits than its factorization.

124407557742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105888.

The product of its (nonzero) digits is 2195200, while the sum is 48.

The spelling of 124407557742 in words is "one hundred twenty-four billion, four hundred seven million, five hundred fifty-seven thousand, seven hundred forty-two".