687375673370 has 16 divisors (see below), whose sum is σ = 1238383910088. Its totient is φ = 274704114240.

The previous prime is 687375673367. The next prime is 687375673417. The reversal of 687375673370 is 73376573786.

It can be written as a sum of positive squares in 4 ways, for example, as 241136977249 + 446238696121 = 491057^2 + 668011^2 .

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 7 ways as a sum of consecutive naturals, for example, 30757661 + ... + 30780000.

Almost surely, 2^687375673370 is an apocalyptic number.

687375673370 is a deficient number, since it is larger than the sum of its proper divisors (551008236718).

687375673370 is a wasteful number, since it uses less digits than its factorization.

687375673370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61538785.

The product of its (nonzero) digits is 93350880, while the sum is 62.

The spelling of 687375673370 in words is "six hundred eighty-seven billion, three hundred seventy-five million, six hundred seventy-three thousand, three hundred seventy".