38775994542 has 96 divisors (see below), whose sum is σ = 91823397120. Its totient is φ = 12230170560.

The previous prime is 38775994421. The next prime is 38775994553. The reversal of 38775994542 is 24549957783.

38775994542 is a `hidden beast` number, since 3 + 87 + 7 + 5 + 9 + 9 + 4 + 542 = 666.

38775994542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 38775994542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9518218 + ... + 9522290.

It is an arithmetic number, because the mean of its divisors is an integer number (956493720).

Almost surely, 2^38775994542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38775994542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45911698560).

38775994542 is an abundant number, since it is smaller than the sum of its proper divisors (53047402578).

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

38775994542 is a wasteful number, since it uses less digits than its factorization.

38775994542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140 (or 5128 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 63.

The spelling of 38775994542 in words is "thirty-eight billion, seven hundred seventy-five million, nine hundred ninety-four thousand, five hundred forty-two".