687734002311 has 4 divisors (see below), whose sum is σ = 916978669752. Its totient is φ = 458489334872.

The previous prime is 687734002297. The next prime is 687734002369. The reversal of 687734002311 is 113200437786.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 687734002311 - 2⁷ = 687734002183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687734002391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114622333716 + ... + 114622333721.

It is an arithmetic number, because the mean of its divisors is an integer number (229244667438).

Almost surely, 2^687734002311 is an apocalyptic number.

687734002311 is a deficient number, since it is larger than the sum of its proper divisors (229244667441).

687734002311 is a wasteful number, since it uses less digits than its factorization.

687734002311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229244667440.

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 687734002311 in words is "six hundred eighty-seven billion, seven hundred thirty-four million, two thousand, three hundred eleven".