123876420864 has 144 divisors (see below), whose sum is σ = 377051283840. Its totient is φ = 35368796160.

The previous prime is 123876420853. The next prime is 123876420883. The reversal of 123876420864 is 468024678321.

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 15 ways as a sum of consecutive naturals, for example, 8642824 + ... + 8657144.

Almost surely, 2^123876420864 is an apocalyptic number.

123876420864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123876420864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188525641920).

123876420864 is an abundant number, since it is smaller than the sum of its proper divisors (253174862976).

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

123876420864 is a wasteful number, since it uses less digits than its factorization.

123876420864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15956 (or 15942 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 123876420864 in words is "one hundred twenty-three billion, eight hundred seventy-six million, four hundred twenty thousand, eight hundred sixty-four".