38180941394 has 32 divisors (see below), whose sum is σ = 59970596400. Its totient is φ = 18207866880.

The previous prime is 38180941391. The next prime is 38180941397. The reversal of 38180941394 is 49314908183.

38180941394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38180941391) and next prime (38180941397).

It can be written as a sum of positive squares in 8 ways, for example, as 7062217369 + 31118724025 = 84037^2 + 176405^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38180941391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2121554 + ... + 2139474.

Almost surely, 2^38180941394 is an apocalyptic number.

38180941394 is a deficient number, since it is larger than the sum of its proper divisors (21789655006).

38180941394 is a wasteful number, since it uses less digits than its factorization.

38180941394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18398.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 38180941394 in words is "thirty-eight billion, one hundred eighty million, nine hundred forty-one thousand, three hundred ninety-four".