671281254801 has 24 divisors (see below), whose sum is σ = 981028039680. Its totient is φ = 442264680000.

The previous prime is 671281254773. The next prime is 671281254803. The reversal of 671281254801 is 108452182176.

671281254801 is a `hidden beast` number, since 6 + 71 + 2 + 81 + 25 + 480 + 1 = 666.

It is not a de Polignac number, because 671281254801 - 2⁵ = 671281254769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671281254803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1347976 + ... + 1777526.

It is an arithmetic number, because the mean of its divisors is an integer number (40876168320).

Almost surely, 2^671281254801 is an apocalyptic number.

It is an amenable number.

671281254801 is a deficient number, since it is larger than the sum of its proper divisors (309746784879).

671281254801 is a wasteful number, since it uses less digits than its factorization.

671281254801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431597 (or 431594 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 671281254801 in words is "six hundred seventy-one billion, two hundred eighty-one million, two hundred fifty-four thousand, eight hundred one".