623401422336 has 1120 divisors, whose sum is σ = 2361509568000. Its totient is φ = 159630704640.

The previous prime is 623401422277. The next prime is 623401422437. The reversal of 623401422336 is 633224104326.

623401422336 is a `hidden beast` number, since 6 + 23 + 401 + 4 + 223 + 3 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 623401422336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 3132670365 + ... + 3132670563.

Almost surely, 2^623401422336 is an apocalyptic number.

623401422336 is a gapful number since it is divisible by the number (66) 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 623401422336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1180754784000).

623401422336 is an abundant number, since it is smaller than the sum of its proper divisors (1738108145664).

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

623401422336 is a wasteful number, since it uses less digits than its factorization.

623401422336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

The spelling of 623401422336 in words is "six hundred twenty-three billion, four hundred one million, four hundred twenty-two thousand, three hundred thirty-six".