89642217538 has 8 divisors (see below), whose sum is σ = 135719993232. Its totient is φ = 44402219796.

The previous prime is 89642217517. The next prime is 89642217541. The reversal of 89642217538 is 83571224698.

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

It is a super-2 number, since 2×89642217538² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209444220 + ... + 209444647.

It is an arithmetic number, because the mean of its divisors is an integer number (16964999154).

Almost surely, 2^89642217538 is an apocalyptic number.

89642217538 is a deficient number, since it is larger than the sum of its proper divisors (46077775694).

89642217538 is a wasteful number, since it uses less digits than its factorization.

89642217538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418888976.

The product of its digits is 5806080, while the sum is 55.

The spelling of 89642217538 in words is "eighty-nine billion, six hundred forty-two million, two hundred seventeen thousand, five hundred thirty-eight".