687225380276 has 24 divisors (see below), whose sum is σ = 1229375652960. Its totient is φ = 336048986592.

The previous prime is 687225380227. The next prime is 687225380287. The reversal of 687225380276 is 672083522786.

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, 9186755 + ... + 9261258.

It is an arithmetic number, because the mean of its divisors is an integer number (51223985540).

Almost surely, 2^687225380276 is an apocalyptic number.

It is an amenable number.

687225380276 is a deficient number, since it is larger than the sum of its proper divisors (542150272684).

687225380276 is a wasteful number, since it uses less digits than its factorization.

687225380276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18448223 (or 18448221 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 687225380276 in words is "six hundred eighty-seven billion, two hundred twenty-five million, three hundred eighty thousand, two hundred seventy-six".