89138068287 has 16 divisors (see below), whose sum is σ = 120569180160. Its totient is φ = 58571877600.

The previous prime is 89138068259. The next prime is 89138068291. The reversal of 89138068287 is 78286083198.

It is not a de Polignac number, because 89138068287 - 2¹⁴ = 89138051903 is a prime.

It is a super-2 number, since 2×89138068287² (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 89138068287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89138068237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651139 + ... + 776052.

It is an arithmetic number, because the mean of its divisors is an integer number (7535573760).

Almost surely, 2^89138068287 is an apocalyptic number.

89138068287 is a deficient number, since it is larger than the sum of its proper divisors (31431111873).

89138068287 is a wasteful number, since it uses less digits than its factorization.

89138068287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427494.

The product of its (nonzero) digits is 9289728, while the sum is 60.

The spelling of 89138068287 in words is "eighty-nine billion, one hundred thirty-eight million, sixty-eight thousand, two hundred eighty-seven".