4281931654561 has 4 divisors (see below), whose sum is σ = 4671198168624. Its totient is φ = 3892665140500.

The previous prime is 4281931654487. The next prime is 4281931654607. The reversal of 4281931654561 is 1654561391824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4281931654561 - 2²³ = 4281923265953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4281931654361) 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 3 ways as a sum of consecutive naturals, for example, 194633257015 + ... + 194633257036.

It is an arithmetic number, because the mean of its divisors is an integer number (1167799542156).

Almost surely, 2^{4281931654561} is an apocalyptic number.

It is an amenable number.

4281931654561 is a deficient number, since it is larger than the sum of its proper divisors (389266514063).

4281931654561 is a wasteful number, since it uses less digits than its factorization.

4281931654561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389266514062.

The product of its digits is 6220800, while the sum is 55.

The spelling of 4281931654561 in words is "four trillion, two hundred eighty-one billion, nine hundred thirty-one million, six hundred fifty-four thousand, five hundred sixty-one".