687348955534 has 16 divisors (see below), whose sum is σ = 1091780726400. Its totient is φ = 323426078464.

The previous prime is 687348955519. The next prime is 687348955547. The reversal of 687348955534 is 435559843786.

It is a self number, because there is not a number n which added to its sum of digits gives 687348955534.

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, 660199 + ... + 1345570.

It is an arithmetic number, because the mean of its divisors is an integer number (68236295400).

Almost surely, 2^687348955534 is an apocalyptic number.

687348955534 is a deficient number, since it is larger than the sum of its proper divisors (404431770866).

687348955534 is a wasteful number, since it uses less digits than its factorization.

687348955534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015867.

The product of its digits is 435456000, while the sum is 67.

The spelling of 687348955534 in words is "six hundred eighty-seven billion, three hundred forty-eight million, nine hundred fifty-five thousand, five hundred thirty-four".