889439342820 has 48 divisors (see below), whose sum is σ = 2846205898368. Its totient is φ = 203300421120.

The previous prime is 889439342819. The next prime is 889439342821. The reversal of 889439342820 is 28243934988.

It is an interprime number because it is at equal distance from previous prime (889439342819) and next prime (889439342821).

It is a super-2 number, since 2×889439342820² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (889439342821) 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, 1058855941 + ... + 1058856780.

It is an arithmetic number, because the mean of its divisors is an integer number (59295956216).

Almost surely, 2^889439342820 is an apocalyptic number.

It is an amenable number.

889439342820 is an abundant number, since it is smaller than the sum of its proper divisors (1956766555548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

889439342820 is a wasteful number, since it uses less digits than its factorization.

889439342820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117712740 (or 2117712738 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 60.

The spelling of 889439342820 in words is "eight hundred eighty-nine billion, four hundred thirty-nine million, three hundred forty-two thousand, eight hundred twenty".