123194835680 has 288 divisors, whose sum is σ = 377356644000. Its totient is φ = 37660557312.

The previous prime is 123194835679. The next prime is 123194835691. The reversal of 123194835680 is 86538491321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2507996 + ... + 2556644.

It is an arithmetic number, because the mean of its divisors is an integer number (1310266125).

Almost surely, 2^123194835680 is an apocalyptic number.

123194835680 is a gapful number since it is divisible by the number (10) 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 123194835680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188678322000).

123194835680 is an abundant number, since it is smaller than the sum of its proper divisors (254161808320).

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

123194835680 is a wasteful number, since it uses less digits than its factorization.

123194835680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48714 (or 48699 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 123194835680 in words is "one hundred twenty-three billion, one hundred ninety-four million, eight hundred thirty-five thousand, six hundred eighty".