623421537102 has 192 divisors, whose sum is σ = 1672531660800. Its totient is φ = 163425019392.

The previous prime is 623421537071. The next prime is 623421537103. The reversal of 623421537102 is 201735124326.

623421537102 is a `hidden beast` number, since 62 + 34 + 21 + 537 + 10 + 2 = 666.

623421537102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623421537103) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 383171613 + ... + 383173239.

It is an arithmetic number, because the mean of its divisors is an integer number (8711102400).

Almost surely, 2^623421537102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623421537102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (836265830400).

623421537102 is an abundant number, since it is smaller than the sum of its proper divisors (1049110123698).

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

623421537102 is a wasteful number, since it uses less digits than its factorization.

623421537102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927 (or 2924 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 623421537102 in words is "six hundred twenty-three billion, four hundred twenty-one million, five hundred thirty-seven thousand, one hundred two".