89123345901 has 40 divisors (see below), whose sum is σ = 136335830400. Its totient is φ = 58003957440.

The previous prime is 89123345897. The next prime is 89123345911. The reversal of 89123345901 is 10954332198.

It is a happy number.

89123345901 is a `hidden beast` number, since 8 + 9 + 1 + 23 + 34 + 590 + 1 = 666.

It is not a de Polignac number, because 89123345901 - 2² = 89123345897 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89123345911) 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 39 ways as a sum of consecutive naturals, for example, 491266 + ... + 647756.

It is an arithmetic number, because the mean of its divisors is an integer number (3408395760).

Almost surely, 2^89123345901 is an apocalyptic number.

89123345901 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

89123345901 is a deficient number, since it is larger than the sum of its proper divisors (47212484499).

89123345901 is a wasteful number, since it uses less digits than its factorization.

89123345901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156671 (or 156662 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 89123345901 in words is "eighty-nine billion, one hundred twenty-three million, three hundred forty-five thousand, nine hundred one".