687790376675 has 12 divisors (see below), whose sum is σ = 852878227776. Its totient is φ = 550220584800.

The previous prime is 687790376597. The next prime is 687790376687. The reversal of 687790376675 is 576673097786.

It is a de Polignac number, because none of the positive numbers 2^k-687790376675 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 687790376599 and 687790376608.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1020005 + ... + 1554345.

It is an arithmetic number, because the mean of its divisors is an integer number (71073185648).

Almost surely, 2^687790376675 is an apocalyptic number.

687790376675 is a deficient number, since it is larger than the sum of its proper divisors (165087851101).

687790376675 is a wasteful number, since it uses less digits than its factorization.

687790376675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585838 (or 585833 counting only the distinct ones).

The product of its (nonzero) digits is 560105280, while the sum is 71.

The spelling of 687790376675 in words is "six hundred eighty-seven billion, seven hundred ninety million, three hundred seventy-six thousand, six hundred seventy-five".