689332053591 has 12 divisors (see below), whose sum is σ = 1022612716632. Its totient is φ = 447134304816.

The previous prime is 689332053583. The next prime is 689332053637. The reversal of 689332053591 is 195350233986.

689332053591 is a `hidden beast` number, since 6 + 89 + 3 + 3 + 20 + 535 + 9 + 1 = 666.

It is not a de Polignac number, because 689332053591 - 2³ = 689332053583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689332053511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1035032781 + ... + 1035033446.

It is an arithmetic number, because the mean of its divisors is an integer number (85217726386).

Almost surely, 2^689332053591 is an apocalyptic number.

689332053591 is a deficient number, since it is larger than the sum of its proper divisors (333280663041).

689332053591 is a wasteful number, since it uses less digits than its factorization.

689332053591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070066270 (or 2070066267 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 54.

The spelling of 689332053591 in words is "six hundred eighty-nine billion, three hundred thirty-two million, fifty-three thousand, five hundred ninety-one".