38140881249 has 4 divisors (see below), whose sum is σ = 50854508336. Its totient is φ = 25427254164.

The previous prime is 38140881223. The next prime is 38140881253. The reversal of 38140881249 is 94218804183.

It is a happy number.

38140881249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 38140881249 - 2⁸ = 38140880993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38140881198 and 38140881207.

It is not an unprimeable number, because it can be changed into a prime (38140881349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6356813539 + ... + 6356813544.

It is an arithmetic number, because the mean of its divisors is an integer number (12713627084).

Almost surely, 2^38140881249 is an apocalyptic number.

It is an amenable number.

38140881249 is a deficient number, since it is larger than the sum of its proper divisors (12713627087).

38140881249 is a wasteful number, since it uses less digits than its factorization.

38140881249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12713627086.

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 38140881249 in words is "thirty-eight billion, one hundred forty million, eight hundred eighty-one thousand, two hundred forty-nine".