123351951760 has 20 divisors (see below), whose sum is σ = 286793288028. Its totient is φ = 49340780672.

The previous prime is 123351951661. The next prime is 123351951781. The reversal of 123351951760 is 67159153321.

It can be written as a sum of positive squares in 2 ways, for example, as 50857466256 + 72494485504 = 225516^2 + 269248^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770949619 + ... + 770949778.

Almost surely, 2^123351951760 is an apocalyptic number.

123351951760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123351951760 is an abundant number, since it is smaller than the sum of its proper divisors (163441336268).

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

123351951760 is a wasteful number, since it uses less digits than its factorization.

123351951760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541899410 (or 1541899404 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 43.

The spelling of 123351951760 in words is "one hundred twenty-three billion, three hundred fifty-one million, nine hundred fifty-one thousand, seven hundred sixty".