89638109137 has 4 divisors (see below), whose sum is σ = 90282987760. Its totient is φ = 88993230516.

The previous prime is 89638109087. The next prime is 89638109147. The reversal of 89638109137 is 73190183698.

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 a cyclic number.

It is not a de Polignac number, because 89638109137 - 2¹¹ = 89638107089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89638109147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322439103 + ... + 322439380.

It is an arithmetic number, because the mean of its divisors is an integer number (22570746940).

Almost surely, 2^89638109137 is an apocalyptic number.

It is an amenable number.

89638109137 is a deficient number, since it is larger than the sum of its proper divisors (644878623).

89638109137 is a wasteful number, since it uses less digits than its factorization.

89638109137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644878622.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 89638109137 in words is "eighty-nine billion, six hundred thirty-eight million, one hundred nine thousand, one hundred thirty-seven".