3997087115643 has 48 divisors (see below), whose sum is σ = 6140493515520. Its totient is φ = 2501680896000.

The previous prime is 3997087115639. The next prime is 3997087115683. The reversal of 3997087115643 is 3465117807993.

3997087115643 is a `hidden beast` number, since 399 + 70 + 8 + 7 + 115 + 64 + 3 = 666.

It is not a de Polignac number, because 3997087115643 - 2² = 3997087115639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3997087115633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202558 + ... + 2834643.

It is an arithmetic number, because the mean of its divisors is an integer number (127926948240).

Almost surely, 2^{3997087115643} is an apocalyptic number.

3997087115643 is a deficient number, since it is larger than the sum of its proper divisors (2143406399877).

3997087115643 is a wasteful number, since it uses less digits than its factorization.

3997087115643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037380 (or 3037377 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 63.

The spelling of 3997087115643 in words is "three trillion, nine hundred ninety-seven billion, eighty-seven million, one hundred fifteen thousand, six hundred forty-three".