889631748946 has 4 divisors (see below), whose sum is σ = 1334447623422. Its totient is φ = 444815874472.

The previous prime is 889631748893. The next prime is 889631748959. The reversal of 889631748946 is 649847136988.

889631748946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 831490483321 + 58141265625 = 911861^2 + 241125^2 .

It is a super-2 number, since 2×889631748946² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222407937235 + ... + 222407937238.

Almost surely, 2^889631748946 is an apocalyptic number.

889631748946 is a deficient number, since it is larger than the sum of its proper divisors (444815874476).

889631748946 is a wasteful number, since it uses less digits than its factorization.

889631748946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444815874475.

The product of its digits is 501645312, while the sum is 73.

The spelling of 889631748946 in words is "eight hundred eighty-nine billion, six hundred thirty-one million, seven hundred forty-eight thousand, nine hundred forty-six".