38894193404949 has 4 divisors (see below), whose sum is σ = 51858924539936. Its totient is φ = 25929462269964.

The previous prime is 38894193404939. The next prime is 38894193404959. The reversal of 38894193404949 is 94940439149883.

38894193404949 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 an interprime number because it is at equal distance from previous prime (38894193404939) and next prime (38894193404959).

It is not a de Polignac number, because 38894193404949 - 2¹⁶ = 38894193339413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38894193404939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6482365567489 + ... + 6482365567494.

It is an arithmetic number, because the mean of its divisors is an integer number (12964731134984).

Almost surely, 2^{38894193404949} is an apocalyptic number.

It is an amenable number.

38894193404949 is a deficient number, since it is larger than the sum of its proper divisors (12964731134987).

38894193404949 is a wasteful number, since it uses less digits than its factorization.

38894193404949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12964731134986.

The product of its (nonzero) digits is 967458816, while the sum is 75.

The spelling of 38894193404949 in words is "thirty-eight trillion, eight hundred ninety-four billion, one hundred ninety-three million, four hundred four thousand, nine hundred forty-nine".