689368515742 has 16 divisors (see below), whose sum is σ = 1051167115152. Its totient is φ = 339026047360.

The previous prime is 689368515713. The next prime is 689368515757. The reversal of 689368515742 is 247515863986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11612773 + ... + 11671984.

It is an arithmetic number, because the mean of its divisors is an integer number (65697944697).

Almost surely, 2^689368515742 is an apocalyptic number.

689368515742 is a deficient number, since it is larger than the sum of its proper divisors (361798599410).

689368515742 is a wasteful number, since it uses less digits than its factorization.

689368515742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23285003.

The product of its digits is 87091200, while the sum is 64.

The spelling of 689368515742 in words is "six hundred eighty-nine billion, three hundred sixty-eight million, five hundred fifteen thousand, seven hundred forty-two".