687495585774 has 16 divisors (see below), whose sum is σ = 1375778251008. Its totient is φ = 229034015352.

The previous prime is 687495585761. The next prime is 687495585811. The reversal of 687495585774 is 477585594786.

It is a junction number, because it is equal to n+sod(n) for n = 687495585696 and 687495585705.

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, 32783622 + ... + 32804585.

It is an arithmetic number, because the mean of its divisors is an integer number (85986140688).

Almost surely, 2^687495585774 is an apocalyptic number.

687495585774 is an abundant number, since it is smaller than the sum of its proper divisors (688282665234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

687495585774 is a wasteful number, since it uses less digits than its factorization.

687495585774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65589959.

The product of its digits is 2370816000, while the sum is 75.

The spelling of 687495585774 in words is "six hundred eighty-seven billion, four hundred ninety-five million, five hundred eighty-five thousand, seven hundred seventy-four".