124838777940 has 48 divisors (see below), whose sum is σ = 349564028352. Its totient is φ = 33288869376.

The previous prime is 124838777929. The next prime is 124838777941. The reversal of 124838777940 is 49777838421.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124838777941) 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, 2384727 + ... + 2436513.

It is an arithmetic number, because the mean of its divisors is an integer number (7282583924).

Almost surely, 2^124838777940 is an apocalyptic number.

124838777940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124838777940 is an abundant number, since it is smaller than the sum of its proper divisors (224725250412).

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

124838777940 is a wasteful number, since it uses less digits than its factorization.

124838777940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91976 (or 91974 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 60.

The spelling of 124838777940 in words is "one hundred twenty-four billion, eight hundred thirty-eight million, seven hundred seventy-seven thousand, nine hundred forty".