38444989894 has 16 divisors (see below), whose sum is σ = 58418303328. Its totient is φ = 18973285632.

The previous prime is 38444989841. The next prime is 38444989963. The reversal of 38444989894 is 49898944483.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193282 + ... + 338005.

It is an arithmetic number, because the mean of its divisors is an integer number (3651143958).

Almost surely, 2^38444989894 is an apocalyptic number.

38444989894 is a deficient number, since it is larger than the sum of its proper divisors (19973313434).

38444989894 is a wasteful number, since it uses less digits than its factorization.

38444989894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531759.

The product of its digits is 286654464, while the sum is 70.

The spelling of 38444989894 in words is "thirty-eight billion, four hundred forty-four million, nine hundred eighty-nine thousand, eight hundred ninety-four".