684242497574 has 8 divisors (see below), whose sum is σ = 1026416652768. Its totient is φ = 342103613320.

The previous prime is 684242497541. The next prime is 684242497613. The reversal of 684242497574 is 475794242486.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8769182 + ... + 8846865.

It is an arithmetic number, because the mean of its divisors is an integer number (128302081596).

Almost surely, 2^684242497574 is an apocalyptic number.

684242497574 is a deficient number, since it is larger than the sum of its proper divisors (342174155194).

684242497574 is a wasteful number, since it uses less digits than its factorization.

684242497574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17635470.

The product of its digits is 108380160, while the sum is 62.

The spelling of 684242497574 in words is "six hundred eighty-four billion, two hundred forty-two million, four hundred ninety-seven thousand, five hundred seventy-four".