8889387605345 has 16 divisors (see below), whose sum is σ = 11595186832320. Its totient is φ = 6503120647104.

The previous prime is 8889387605297. The next prime is 8889387605353. The reversal of 8889387605345 is 5435067839888.

It is a cyclic number.

It is not a de Polignac number, because 8889387605345 - 2¹⁸ = 8889387343201 is a prime.

It is a super-2 number, since 2×8889387605345² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639057575 + ... + 639071484.

It is an arithmetic number, because the mean of its divisors is an integer number (724699177020).

Almost surely, 2^{8889387605345} is an apocalyptic number.

It is an amenable number.

8889387605345 is a deficient number, since it is larger than the sum of its proper divisors (2705799226975).

8889387605345 is a wasteful number, since it uses less digits than its factorization.

8889387605345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278129184.

The product of its (nonzero) digits is 1393459200, while the sum is 74.

The spelling of 8889387605345 in words is "eight trillion, eight hundred eighty-nine billion, three hundred eighty-seven million, six hundred five thousand, three hundred forty-five".