123749498720 has 24 divisors (see below), whose sum is σ = 292358191104. Its totient is φ = 49499799424.

The previous prime is 123749498699. The next prime is 123749498731. The reversal of 123749498720 is 27894947321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386717024 + ... + 386717343.

It is an arithmetic number, because the mean of its divisors is an integer number (12181591296).

Almost surely, 2^123749498720 is an apocalyptic number.

123749498720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123749498720 is an abundant number, since it is smaller than the sum of its proper divisors (168608692384).

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

123749498720 is an equidigital number, since it uses as much as digits as its factorization.

123749498720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773434382 (or 773434374 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 123749498720 in words is "one hundred twenty-three billion, seven hundred forty-nine million, four hundred ninety-eight thousand, seven hundred twenty".