123877919420 has 24 divisors (see below), whose sum is σ = 260619236304. Its totient is φ = 49460576256.

The previous prime is 123877919413. The next prime is 123877919437. The reversal of 123877919420 is 24919778321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5650757 + ... + 5672636.

It is an arithmetic number, because the mean of its divisors is an integer number (10859134846).

Almost surely, 2^123877919420 is an apocalyptic number.

123877919420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123877919420 is an abundant number, since it is smaller than the sum of its proper divisors (136741316884).

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

123877919420 is a wasteful number, since it uses less digits than its factorization.

123877919420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11323949 (or 11323947 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 123877919420 in words is "one hundred twenty-three billion, eight hundred seventy-seven million, nine hundred nineteen thousand, four hundred twenty".