123474780000 has 1800 divisors, whose sum is σ = 549109022616. Its totient is φ = 26956800000.

The previous prime is 123474779983. The next prime is 123474780061. The reversal of 123474780000 is 87474321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1800).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 299 ways as a sum of consecutive naturals, for example, 3011579980 + ... + 3011580020.

Almost surely, 2^123474780000 is an apocalyptic number.

123474780000 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 123474780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274554511308).

123474780000 is an abundant number, since it is smaller than the sum of its proper divisors (425634242616).

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

123474780000 is a wasteful number, since it uses less digits than its factorization.

123474780000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The spelling of 123474780000 in words is "one hundred twenty-three billion, four hundred seventy-four million, seven hundred eighty thousand".