671687846125080 has 128 divisors (see below), whose sum is σ = 2124013270406400. Its totient is φ = 169458060621312.

The previous prime is 671687846125033. The next prime is 671687846125117. The reversal of 671687846125080 is 80521648786176.

It is a junction number, because it is equal to n+sod(n) for n = 671687846124996 and 671687846125014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199283694 + ... + 202626173.

It is an arithmetic number, because the mean of its divisors is an integer number (16593853675050).

Almost surely, 2^{671687846125080} is an apocalyptic number.

671687846125080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

671687846125080 is an abundant number, since it is smaller than the sum of its proper divisors (1452325424281320).

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

671687846125080 is a wasteful number, since it uses less digits than its factorization.

671687846125080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401910633 (or 401910629 counting only the distinct ones).

The product of its (nonzero) digits is 216760320, while the sum is 69.

The spelling of 671687846125080 in words is "six hundred seventy-one trillion, six hundred eighty-seven billion, eight hundred forty-six million, one hundred twenty-five thousand, eighty".