687082313613 has 8 divisors (see below), whose sum is σ = 916113650400. Its totient is φ = 458052926288.

The previous prime is 687082313557. The next prime is 687082313647. The reversal of 687082313613 is 316313280786.

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

It is a cyclic number.

It is not a de Polignac number, because 687082313613 - 2¹³ = 687082305421 is a prime.

It is a super-2 number, since 2×687082313613² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687082313653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895798 + ... + 1475336.

It is an arithmetic number, because the mean of its divisors is an integer number (114514206300).

Almost surely, 2^687082313613 is an apocalyptic number.

It is an amenable number.

687082313613 is a deficient number, since it is larger than the sum of its proper divisors (229031336787).

687082313613 is a wasteful number, since it uses less digits than its factorization.

687082313613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974731.

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 687082313613 in words is "six hundred eighty-seven billion, eighty-two million, three hundred thirteen thousand, six hundred thirteen".