889807140829 has 4 divisors (see below), whose sum is σ = 890096136160. Its totient is φ = 889518145500.

The previous prime is 889807140799. The next prime is 889807140863. The reversal of 889807140829 is 928041708988.

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 889807140829 - 2⁵ = 889807140797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889807170829) 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, 144493047 + ... + 144499204.

It is an arithmetic number, because the mean of its divisors is an integer number (222524034040).

Almost surely, 2^889807140829 is an apocalyptic number.

It is an amenable number.

889807140829 is a deficient number, since it is larger than the sum of its proper divisors (288995331).

889807140829 is a wasteful number, since it uses less digits than its factorization.

889807140829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288995330.

The product of its (nonzero) digits is 18579456, while the sum is 64.

The spelling of 889807140829 in words is "eight hundred eighty-nine billion, eight hundred seven million, one hundred forty thousand, eight hundred twenty-nine".