38398671890 has 8 divisors (see below), whose sum is σ = 69117609420. Its totient is φ = 15359468752.

The previous prime is 38398671887. The next prime is 38398671917. The reversal of 38398671890 is 9817689383.

It can be written as a sum of positive squares in 2 ways, for example, as 36343228321 + 2055443569 = 190639^2 + 45337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1919933585 + ... + 1919933604.

Almost surely, 2^38398671890 is an apocalyptic number.

38398671890 is a deficient number, since it is larger than the sum of its proper divisors (30718937530).

38398671890 is a wasteful number, since it uses less digits than its factorization.

38398671890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839867196.

The product of its (nonzero) digits is 15676416, while the sum is 62.

The spelling of 38398671890 in words is "thirty-eight billion, three hundred ninety-eight million, six hundred seventy-one thousand, eight hundred ninety".