89123739636 has 24 divisors (see below), whose sum is σ = 208034807904. Its totient is φ = 29696568160.

The previous prime is 89123739631. The next prime is 89123739643. The reversal of 89123739636 is 63693732198.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89123739631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1385370 + ... + 1448273.

It is an arithmetic number, because the mean of its divisors is an integer number (8668116996).

Almost surely, 2^89123739636 is an apocalyptic number.

It is an amenable number.

89123739636 is an abundant number, since it is smaller than the sum of its proper divisors (118911068268).

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

89123739636 is a wasteful number, since it uses less digits than its factorization.

89123739636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836271 (or 2836269 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 57.

The spelling of 89123739636 in words is "eighty-nine billion, one hundred twenty-three million, seven hundred thirty-nine thousand, six hundred thirty-six".