742259216686 has 16 divisors (see below), whose sum is σ = 1210675231584. Its totient is φ = 339255144864.

The previous prime is 742259216663. The next prime is 742259216717. The reversal of 742259216686 is 686612952247.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 742259216686.

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, 138581941 + ... + 138587296.

It is an arithmetic number, because the mean of its divisors is an integer number (75667201974).

Almost surely, 2^742259216686 is an apocalyptic number.

742259216686 is a deficient number, since it is larger than the sum of its proper divisors (468416014898).

742259216686 is a wasteful number, since it uses less digits than its factorization.

742259216686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277169355.

The product of its digits is 17418240, while the sum is 58.

The spelling of 742259216686 in words is "seven hundred forty-two billion, two hundred fifty-nine million, two hundred sixteen thousand, six hundred eighty-six".