689405045532 has 48 divisors (see below), whose sum is σ = 1839983668992. Its totient is φ = 196804632960.

The previous prime is 689405045491. The next prime is 689405045561. The reversal of 689405045532 is 235540504986.

It is a happy number.

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, 3405993 + ... + 3602720.

It is an arithmetic number, because the mean of its divisors is an integer number (38332993104).

Almost surely, 2^689405045532 is an apocalyptic number.

It is an amenable number.

689405045532 is an abundant number, since it is smaller than the sum of its proper divisors (1150578623460).

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

689405045532 is a wasteful number, since it uses less digits than its factorization.

689405045532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009898 (or 7009896 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 51.

The spelling of 689405045532 in words is "six hundred eighty-nine billion, four hundred five million, forty-five thousand, five hundred thirty-two".