687375673372 has 12 divisors (see below), whose sum is σ = 1202918066896. Its totient is φ = 343684797120.

The previous prime is 687375673367. The next prime is 687375673417. The reversal of 687375673372 is 273376573786.

It is a super-2 number, since 2×687375673372² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206253 + ... + 1190500.

Almost surely, 2^687375673372 is an apocalyptic number.

It is an amenable number.

687375673372 is a deficient number, since it is larger than the sum of its proper divisors (515542393524).

687375673372 is a wasteful number, since it uses less digits than its factorization.

687375673372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519788 (or 1519786 counting only the distinct ones).

The product of its digits is 186701760, while the sum is 64.

It can be divided in two parts, 6873756 and 73372, that added together give a triangular number (6947128 = T₃₇₂₇).

The spelling of 687375673372 in words is "six hundred eighty-seven billion, three hundred seventy-five million, six hundred seventy-three thousand, three hundred seventy-two".