889440359687 has 16 divisors (see below), whose sum is σ = 988847971488. Its totient is φ = 793131780480.

The previous prime is 889440359681. The next prime is 889440359719. The reversal of 889440359687 is 786953044988.

It is a cyclic number.

It is not a de Polignac number, because 889440359687 - 2⁶ = 889440359623 is a prime.

It is a super-2 number, since 2×889440359687² (a number of 25 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 889440359687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889440359681) 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, 2224973 + ... + 2594105.

It is an arithmetic number, because the mean of its divisors is an integer number (61802998218).

Almost surely, 2^889440359687 is an apocalyptic number.

889440359687 is a deficient number, since it is larger than the sum of its proper divisors (99407611801).

889440359687 is a wasteful number, since it uses less digits than its factorization.

889440359687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373330.

The product of its (nonzero) digits is 418037760, while the sum is 71.

The spelling of 889440359687 in words is "eight hundred eighty-nine billion, four hundred forty million, three hundred fifty-nine thousand, six hundred eighty-seven".