687345847468 has 24 divisors (see below), whose sum is σ = 1374710439200. Its totient is φ = 294572775168.

The previous prime is 687345847457. The next prime is 687345847501. The reversal of 687345847468 is 864748543786.

It is a super-2 number, since 2×687345847468² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 687345847397 and 687345847406.

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, 2925718 + ... + 3151906.

Almost surely, 2^687345847468 is an apocalyptic number.

It is an amenable number.

687345847468 is an abundant number, since it is smaller than the sum of its proper divisors (687364591732).

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

687345847468 is a wasteful number, since it uses less digits than its factorization.

687345847468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334729 (or 334727 counting only the distinct ones).

The product of its digits is 867041280, while the sum is 70.

The spelling of 687345847468 in words is "six hundred eighty-seven billion, three hundred forty-five million, eight hundred forty-seven thousand, four hundred sixty-eight".