893394109489 has 4 divisors (see below), whose sum is σ = 1021021839424. Its totient is φ = 765766379556.

The previous prime is 893394109481. The next prime is 893394109493. The reversal of 893394109489 is 984901493398.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 893394109489 - 2³ = 893394109481 is a prime.

It is a super-2 number, since 2×893394109489² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (893394109481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63813864957 + ... + 63813864970.

It is an arithmetic number, because the mean of its divisors is an integer number (255255459856).

Almost surely, 2^893394109489 is an apocalyptic number.

It is an amenable number.

893394109489 is a deficient number, since it is larger than the sum of its proper divisors (127627729935).

893394109489 is a wasteful number, since it uses less digits than its factorization.

893394109489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127627729934.

The product of its (nonzero) digits is 60466176, while the sum is 67.

The spelling of 893394109489 in words is "eight hundred ninety-three billion, three hundred ninety-four million, one hundred nine thousand, four hundred eighty-nine".