3901651063663 has 4 divisors (see below), whose sum is σ = 3901655021688. Its totient is φ = 3901647105640.

The previous prime is 3901651063633. The next prime is 3901651063669. The reversal of 3901651063663 is 3663601561093.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3901651063663 - 2⁵ = 3901651063631 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 (3901651063669) 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, 806793 + ... + 2907613.

It is an arithmetic number, because the mean of its divisors is an integer number (975413755422).

Almost surely, 2^{3901651063663} is an apocalyptic number.

3901651063663 is a deficient number, since it is larger than the sum of its proper divisors (3958025).

3901651063663 is a wasteful number, since it uses less digits than its factorization.

3901651063663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3958024.

The product of its (nonzero) digits is 1574640, while the sum is 49.

The spelling of 3901651063663 in words is "three trillion, nine hundred one billion, six hundred fifty-one million, sixty-three thousand, six hundred sixty-three".