123739445050 has 96 divisors (see below), whose sum is σ = 253715761152. Its totient is φ = 44613434880.

The previous prime is 123739445029. The next prime is 123739445051. The reversal of 123739445050 is 50544937321.

It is a super-2 number, since 2×123739445050² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123739444988 and 123739445006.

It is not an unprimeable number, because it can be changed into a prime (123739445051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13956919 + ... + 13965781.

It is an arithmetic number, because the mean of its divisors is an integer number (2642872512).

Almost surely, 2^123739445050 is an apocalyptic number.

123739445050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123739445050 is an abundant number, since it is smaller than the sum of its proper divisors (129976316102).

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

123739445050 is a wasteful number, since it uses less digits than its factorization.

123739445050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9392 (or 9387 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 123739445050 in words is "one hundred twenty-three billion, seven hundred thirty-nine million, four hundred forty-five thousand, fifty".