89863681844 has 36 divisors (see below), whose sum is σ = 167139248640. Its totient is φ = 42267788160.

The previous prime is 89863681837. The next prime is 89863681849. The reversal of 89863681844 is 44818636898.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89863681849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2445197 + ... + 2481675.

Almost surely, 2^89863681844 is an apocalyptic number.

It is an amenable number.

89863681844 is a deficient number, since it is larger than the sum of its proper divisors (77275566796).

89863681844 is a wasteful number, since it uses less digits than its factorization.

89863681844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38648 (or 38629 counting only the distinct ones).

The product of its digits is 63700992, while the sum is 65.

The spelling of 89863681844 in words is "eighty-nine billion, eight hundred sixty-three million, six hundred eighty-one thousand, eight hundred forty-four".