3973946999999 has 8 divisors (see below), whose sum is σ = 4083237263952. Its totient is φ = 3865423685760.

The previous prime is 3973946999987. The next prime is 3973947000007. The reversal of 3973946999999 is 9999996493793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3973946999999 - 2⁴ = 3973946999983 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 (3973946999909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191726924 + ... + 191747649.

It is an arithmetic number, because the mean of its divisors is an integer number (510404657994).

Almost surely, 2^{3973946999999} is an apocalyptic number.

3973946999999 is a deficient number, since it is larger than the sum of its proper divisors (109290263953).

3973946999999 is a wasteful number, since it uses less digits than its factorization.

3973946999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383474857.

The product of its digits is 65086642152, while the sum is 95.

The spelling of 3973946999999 in words is "three trillion, nine hundred seventy-three billion, nine hundred forty-six million, nine hundred ninety-nine thousand, nine hundred ninety-nine".