687103769916 has 72 divisors (see below), whose sum is σ = 1772959201104. Its totient is φ = 224311887360.

The previous prime is 687103769897. The next prime is 687103769921. The reversal of 687103769916 is 619967301786.

It is a super-2 number, since 2×687103769916² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 406045 + ... + 1240596.

Almost surely, 2^687103769916 is an apocalyptic number.

It is an amenable number.

687103769916 is an abundant number, since it is smaller than the sum of its proper divisors (1085855431188).

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

687103769916 is a wasteful number, since it uses less digits than its factorization.

687103769916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646891 (or 1646886 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 687103769916 in words is "six hundred eighty-seven billion, one hundred three million, seven hundred sixty-nine thousand, nine hundred sixteen".