124908987840 has 896 divisors, whose sum is σ = 521174642688. Its totient is φ = 24595660800.

The previous prime is 124908987803. The next prime is 124908987899. The reversal of 124908987840 is 48789809421.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 224252842 + ... + 224253398.

It is an arithmetic number, because the mean of its divisors is an integer number (581668128).

Almost surely, 2^124908987840 is an apocalyptic number.

124908987840 is a gapful number since it is divisible by the number (10) 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 124908987840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260587321344).

124908987840 is an abundant number, since it is smaller than the sum of its proper divisors (396265654848).

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

124908987840 is a wasteful number, since it uses less digits than its factorization.

124908987840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 60.

The spelling of 124908987840 in words is "one hundred twenty-four billion, nine hundred eight million, nine hundred eighty-seven thousand, eight hundred forty".