123850711872 has 168 divisors, whose sum is σ = 364597066080. Its totient is φ = 40180915200.

The previous prime is 123850711841. The next prime is 123850711877. The reversal of 123850711872 is 278117058321.

123850711872 is a `hidden beast` number, since 1 + 23 + 8 + 507 + 118 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123850711877) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3414343 + ... + 3450425.

Almost surely, 2^123850711872 is an apocalyptic number.

123850711872 is a gapful number since it is divisible by the number (12) 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 123850711872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182298533040).

123850711872 is an abundant number, since it is smaller than the sum of its proper divisors (240746354208).

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

123850711872 is a wasteful number, since it uses less digits than its factorization.

123850711872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36261 (or 36248 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The spelling of 123850711872 in words is "one hundred twenty-three billion, eight hundred fifty million, seven hundred eleven thousand, eight hundred seventy-two".