89281966719 has 32 divisors (see below), whose sum is σ = 131737632768. Its totient is φ = 53330396000.

The previous prime is 89281966717. The next prime is 89281966721. The reversal of 89281966719 is 91766918298.

It is an interprime number because it is at equal distance from previous prime (89281966717) and next prime (89281966721).

It is a cyclic number.

It is not a de Polignac number, because 89281966719 - 2¹ = 89281966717 is a prime.

It is a super-2 number, since 2×89281966719² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 89281966719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89281966717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11408842 + ... + 11416664.

It is an arithmetic number, because the mean of its divisors is an integer number (4116801024).

Almost surely, 2^89281966719 is an apocalyptic number.

89281966719 is a deficient number, since it is larger than the sum of its proper divisors (42455666049).

89281966719 is a wasteful number, since it uses less digits than its factorization.

89281966719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12779.

The product of its digits is 23514624, while the sum is 66.

The spelling of 89281966719 in words is "eighty-nine billion, two hundred eighty-one million, nine hundred sixty-six thousand, seven hundred nineteen".