123719663040 has 56 divisors (see below), whose sum is σ = 392809933200. Its totient is φ = 32991909888.

The previous prime is 123719663003. The next prime is 123719663069. The reversal of 123719663040 is 40366917321.

It is a super-2 number, since 2×123719663040² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123719662983 and 123719663001.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 64436365 + ... + 64438284.

Almost surely, 2^123719663040 is an apocalyptic number.

123719663040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123719663040 is an abundant number, since it is smaller than the sum of its proper divisors (269090270160).

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

123719663040 is a wasteful number, since it uses less digits than its factorization.

123719663040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128874669 (or 128874659 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 123719663040 in words is "one hundred twenty-three billion, seven hundred nineteen million, six hundred sixty-three thousand, forty".