89951965489 has 8 divisors (see below), whose sum is σ = 90167898752. Its totient is φ = 89736126480.

The previous prime is 89951965463. The next prime is 89951965501. The reversal of 89951965489 is 98456915998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89951965489 - 2²³ = 89943576881 is a prime.

It is a deceptive number, since it divides R_89951965488.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89951965429) by changing a digit.

It is a Zeisel number, with parameters (9, 454).

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2118502 + ... + 2160544.

It is an arithmetic number, because the mean of its divisors is an integer number (11270987344).

Almost surely, 2^89951965489 is an apocalyptic number.

It is an amenable number.

89951965489 is a deficient number, since it is larger than the sum of its proper divisors (215933263).

89951965489 is a wasteful number, since it uses less digits than its factorization.

89951965489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47127.

The product of its digits is 251942400, while the sum is 73.

The spelling of 89951965489 in words is "eighty-nine billion, nine hundred fifty-one million, nine hundred sixty-five thousand, four hundred eighty-nine".