38423066688 has 168 divisors, whose sum is σ = 116999369760. Its totient is φ = 12495098880.

The previous prime is 38423066659. The next prime is 38423066723. The reversal of 38423066688 is 88666032483.

It is a happy number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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 23 ways as a sum of consecutive naturals, for example, 607503 + ... + 667761.

It is an arithmetic number, because the mean of its divisors is an integer number (696424820).

Almost surely, 2^38423066688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38423066688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58499684880).

38423066688 is an abundant number, since it is smaller than the sum of its proper divisors (78576303072).

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

38423066688 is an equidigital number, since it uses as much as digits as its factorization.

38423066688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60327 (or 60305 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 54.

The spelling of 38423066688 in words is "thirty-eight billion, four hundred twenty-three million, sixty-six thousand, six hundred eighty-eight".