889243511540 has 48 divisors (see below), whose sum is σ = 1918051145472. Its totient is φ = 346053430656.

The previous prime is 889243511537. The next prime is 889243511551. The reversal of 889243511540 is 45115342988.

889243511540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×889243511540² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9504629 + ... + 9597731.

It is an arithmetic number, because the mean of its divisors is an integer number (39959398864).

Almost surely, 2^889243511540 is an apocalyptic number.

It is an amenable number.

889243511540 is an abundant number, since it is smaller than the sum of its proper divisors (1028807633932).

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

889243511540 is a wasteful number, since it uses less digits than its factorization.

889243511540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106056 (or 106054 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 889243511540 in words is "eight hundred eighty-nine billion, two hundred forty-three million, five hundred eleven thousand, five hundred forty".