89802268991 has 4 divisors (see below), whose sum is σ = 91142601432. Its totient is φ = 88461936552.

The previous prime is 89802268981. The next prime is 89802268993. The reversal of 89802268991 is 19986220898.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89802268991 - 2¹⁴ = 89802252607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89802268993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670166120 + ... + 670166253.

It is an arithmetic number, because the mean of its divisors is an integer number (22785650358).

Almost surely, 2^89802268991 is an apocalyptic number.

89802268991 is a deficient number, since it is larger than the sum of its proper divisors (1340332441).

89802268991 is a wasteful number, since it uses less digits than its factorization.

89802268991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340332440.

The product of its (nonzero) digits is 8957952, while the sum is 62.

The spelling of 89802268991 in words is "eighty-nine billion, eight hundred two million, two hundred sixty-eight thousand, nine hundred ninety-one".