89723191968 has 60 divisors (see below), whose sum is σ = 263873422890. Its totient is φ = 29907729792.

The previous prime is 89723191963. The next prime is 89723191993. The reversal of 89723191968 is 86919132798.

It can be written as a sum of positive squares in only one way, i.e., 58821771024 + 30901420944 = 242532^2 + 175788^2 .

It is not an unprimeable number, because it can be changed into a prime (89723191963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17305123 + ... + 17310306.

Almost surely, 2^89723191968 is an apocalyptic number.

It is an amenable number.

89723191968 is an abundant number, since it is smaller than the sum of its proper divisors (174150230922).

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

89723191968 is a wasteful number, since it uses less digits than its factorization.

89723191968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34615451 (or 34615434 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The spelling of 89723191968 in words is "eighty-nine billion, seven hundred twenty-three million, one hundred ninety-one thousand, nine hundred sixty-eight".