671265250057881 has 48 divisors (see below), whose sum is σ = 976167165782016. Its totient is φ = 444483941586048.

The previous prime is 671265250057877. The next prime is 671265250057951. The reversal of 671265250057881 is 188750052562176.

It is a happy number.

671265250057881 is a `hidden beast` number, since 6 + 7 + 1 + 2 + 6 + 5 + 2 + 50 + 0 + 578 + 8 + 1 = 666.

671265250057881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 671265250057881 - 2² = 671265250057877 is a prime.

It is a super-2 number, since 2×671265250057881² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (671265250057981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63249335131 + ... + 63249345743.

It is an arithmetic number, because the mean of its divisors is an integer number (20336815953792).

Almost surely, 2^{671265250057881} is an apocalyptic number.

It is an amenable number.

671265250057881 is a deficient number, since it is larger than the sum of its proper divisors (304901915724135).

671265250057881 is a wasteful number, since it uses less digits than its factorization.

671265250057881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24262 (or 24259 counting only the distinct ones).

The product of its (nonzero) digits is 56448000, while the sum is 63.

The spelling of 671265250057881 in words is "six hundred seventy-one trillion, two hundred sixty-five billion, two hundred fifty million, fifty-seven thousand, eight hundred eighty-one".