623889378000 has 480 divisors, whose sum is σ = 2582577204480. Its totient is φ = 142602508800.

The previous prime is 623889377999. The next prime is 623889378019. The reversal of 623889378000 is 873988326.

623889378000 is a `hidden beast` number, since 623 + 8 + 8 + 9 + 3 + 7 + 8 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3310306 + ... + 3493694.

It is an arithmetic number, because the mean of its divisors is an integer number (5380369176).

Almost surely, 2^623889378000 is an apocalyptic number.

623889378000 is a gapful number since it is divisible by the number (60) 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 623889378000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1291288602240).

623889378000 is an abundant number, since it is smaller than the sum of its proper divisors (1958687826480).

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

623889378000 is a wasteful number, since it uses less digits than its factorization.

623889378000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183434 (or 183406 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 623889378000 in words is "six hundred twenty-three billion, eight hundred eighty-nine million, three hundred seventy-eight thousand".