89606623638 has 16 divisors (see below), whose sum is σ = 204815139840. Its totient is φ = 25601892456.

The previous prime is 89606623633. The next prime is 89606623651. The reversal of 89606623638 is 83632660698.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89606623633) 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 7 ways as a sum of consecutive naturals, for example, 1066745478 + ... + 1066745561.

It is an arithmetic number, because the mean of its divisors is an integer number (12800946240).

Almost surely, 2^89606623638 is an apocalyptic number.

89606623638 is an abundant number, since it is smaller than the sum of its proper divisors (115208516202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89606623638 is a wasteful number, since it uses less digits than its factorization.

89606623638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133491051.

The product of its (nonzero) digits is 13436928, while the sum is 57.

The spelling of 89606623638 in words is "eighty-nine billion, six hundred six million, six hundred twenty-three thousand, six hundred thirty-eight".