38949219549 has 16 divisors (see below), whose sum is σ = 57707020800. Its totient is φ = 25964133408.

The previous prime is 38949219541. The next prime is 38949219559. The reversal of 38949219549 is 94591294983.

38949219549 is a `hidden beast` number, since 3 + 89 + 4 + 9 + 2 + 1 + 9 + 549 = 666.

It is not a de Polignac number, because 38949219549 - 2³ = 38949219541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38949219541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353257 + ... + 450209.

It is an arithmetic number, because the mean of its divisors is an integer number (3606688800).

Almost surely, 2^38949219549 is an apocalyptic number.

It is an amenable number.

38949219549 is a deficient number, since it is larger than the sum of its proper divisors (18757801251).

38949219549 is a wasteful number, since it uses less digits than its factorization.

38949219549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111841 (or 111835 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 63.

The spelling of 38949219549 in words is "thirty-eight billion, nine hundred forty-nine million, two hundred nineteen thousand, five hundred forty-nine".