38009253912 has 192 divisors, whose sum is σ = 118572076800. Its totient is φ = 9932993280.

The previous prime is 38009253901. The next prime is 38009253917. The reversal of 38009253912 is 21935290083.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38009253917) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1747987 + ... + 1769597.

It is an arithmetic number, because the mean of its divisors is an integer number (617562900).

Almost surely, 2^38009253912 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 38009253912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59286038400).

38009253912 is an abundant number, since it is smaller than the sum of its proper divisors (80562822888).

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

38009253912 is a wasteful number, since it uses less digits than its factorization.

38009253912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21694 (or 21671 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 38009253912 in words is "thirty-eight billion, nine million, two hundred fifty-three thousand, nine hundred twelve".