3981700449793 has 16 divisors (see below), whose sum is σ = 4427424847296. Its totient is φ = 3549990075840.

The previous prime is 3981700449751. The next prime is 3981700449799. The reversal of 3981700449793 is 3979440071893.

It is a cyclic number.

It is not a de Polignac number, because 3981700449793 - 2¹⁷ = 3981700318721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3981700449799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54055 + ... + 2822467.

It is an arithmetic number, because the mean of its divisors is an integer number (276714052956).

Almost surely, 2^{3981700449793} is an apocalyptic number.

It is an amenable number.

3981700449793 is a deficient number, since it is larger than the sum of its proper divisors (445724397503).

3981700449793 is a wasteful number, since it uses less digits than its factorization.

3981700449793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770944.

The product of its (nonzero) digits is 41150592, while the sum is 64.

The spelling of 3981700449793 in words is "three trillion, nine hundred eighty-one billion, seven hundred million, four hundred forty-nine thousand, seven hundred ninety-three".