3996781044219 has 12 divisors (see below), whose sum is σ = 6112723950216. Its totient is φ = 2507784184512.

The previous prime is 3996781044161. The next prime is 3996781044229. The reversal of 3996781044219 is 9124401876993.

3996781044219 is a `hidden beast` number, since 39 + 9 + 6 + 78 + 104 + 421 + 9 = 666.

It is not a de Polignac number, because 3996781044219 - 2¹¹ = 3996781042171 is a prime.

It is a super-2 number, since 2×3996781044219² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3996781044229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13061375809 + ... + 13061376114.

It is an arithmetic number, because the mean of its divisors is an integer number (509393662518).

Almost surely, 2^{3996781044219} is an apocalyptic number.

3996781044219 is a deficient number, since it is larger than the sum of its proper divisors (2115942905997).

3996781044219 is a wasteful number, since it uses less digits than its factorization.

3996781044219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26122751946 (or 26122751943 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 3996781044219 in words is "three trillion, nine hundred ninety-six billion, seven hundred eighty-one million, forty-four thousand, two hundred nineteen".