89201668921 has 8 divisors (see below), whose sum is σ = 93816486144. Its totient is φ = 84695435760.

The previous prime is 89201668891. The next prime is 89201668937. The reversal of 89201668921 is 12986610298.

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 89201668921 - 2⁷ = 89201668793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89201668981) 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 7 ways as a sum of consecutive naturals, for example, 27144331 + ... + 27147616.

It is an arithmetic number, because the mean of its divisors is an integer number (11727060768).

Almost surely, 2^89201668921 is an apocalyptic number.

It is an amenable number.

89201668921 is a deficient number, since it is larger than the sum of its proper divisors (4614817223).

89201668921 is a wasteful number, since it uses less digits than its factorization.

89201668921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54292031.

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 89201668921 in words is "eighty-nine billion, two hundred one million, six hundred sixty-eight thousand, nine hundred twenty-one".