3651285016271 has 4 divisors (see below), whose sum is σ = 3653767196544. Its totient is φ = 3648802836000.

The previous prime is 3651285016243. The next prime is 3651285016273. The reversal of 3651285016271 is 1726105821563.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3651285016271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3651285016273) 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, 1241087930 + ... + 1241090871.

It is an arithmetic number, because the mean of its divisors is an integer number (913441799136).

Almost surely, 2^{3651285016271} is an apocalyptic number.

3651285016271 is a deficient number, since it is larger than the sum of its proper divisors (2482180273).

3651285016271 is a wasteful number, since it uses less digits than its factorization.

3651285016271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482180272.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 3651285016271 in words is "three trillion, six hundred fifty-one billion, two hundred eighty-five million, sixteen thousand, two hundred seventy-one".