671271056746 has 32 divisors (see below), whose sum is σ = 1036957966848. Its totient is φ = 325803325680.

The previous prime is 671271056717. The next prime is 671271056749. The reversal of 671271056746 is 647650172176.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 671271056693 and 671271056702.

It is not an unprimeable number, because it can be changed into a prime (671271056749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2341101 + ... + 2612143.

It is an arithmetic number, because the mean of its divisors is an integer number (32404936464).

Almost surely, 2^671271056746 is an apocalyptic number.

671271056746 is a deficient number, since it is larger than the sum of its proper divisors (365686910102).

671271056746 is a wasteful number, since it uses less digits than its factorization.

671271056746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271386.

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 671271056746 in words is "six hundred seventy-one billion, two hundred seventy-one million, fifty-six thousand, seven hundred forty-six".