3931563018241 has 4 divisors (see below), whose sum is σ = 3931584535984. Its totient is φ = 3931541500500.

The previous prime is 3931563018233. The next prime is 3931563018431. The reversal of 3931563018241 is 1428103651393.

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 3931563018241 - 2³ = 3931563018233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3931563018191 and 3931563018200.

It is not an unprimeable number, because it can be changed into a prime (3931563018641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10482435 + ... + 10851016.

It is an arithmetic number, because the mean of its divisors is an integer number (982896133996).

Almost surely, 2^{3931563018241} is an apocalyptic number.

It is an amenable number.

3931563018241 is a deficient number, since it is larger than the sum of its proper divisors (21517743).

3931563018241 is a wasteful number, since it uses less digits than its factorization.

3931563018241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21517742.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 3931563018241 in words is "three trillion, nine hundred thirty-one billion, five hundred sixty-three million, eighteen thousand, two hundred forty-one".