89791589745 has 224 divisors, whose sum is σ = 195951780864. Its totient is φ = 38883110400.

The previous prime is 89791589647. The next prime is 89791589753. The reversal of 89791589745 is 54798519798.

It is a happy number.

It is not a de Polignac number, because 89791589745 - 2¹² = 89791585649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 16155507 + ... + 16161063.

It is an arithmetic number, because the mean of its divisors is an integer number (874784736).

Almost surely, 2^89791589745 is an apocalyptic number.

It is an amenable number.

89791589745 is an abundant number, since it is smaller than the sum of its proper divisors (106160191119).

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

89791589745 is a wasteful number, since it uses less digits than its factorization.

89791589745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635 (or 5620 counting only the distinct ones).

The product of its digits is 228614400, while the sum is 72.

The spelling of 89791589745 in words is "eighty-nine billion, seven hundred ninety-one million, five hundred eighty-nine thousand, seven hundred forty-five".