3997097999543 has 8 divisors (see below), whose sum is σ = 4360486172160. Its totient is φ = 3633712431480.

The previous prime is 3997097999519. The next prime is 3997097999549. The reversal of 3997097999543 is 3459997907993.

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 3997097999543 - 2⁸ = 3997097999287 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 (3997097999549) 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, 4005896 + ... + 4903202.

It is an arithmetic number, because the mean of its divisors is an integer number (545060771520).

Almost surely, 2^{3997097999543} is an apocalyptic number.

3997097999543 is a deficient number, since it is larger than the sum of its proper divisors (363388172617).

3997097999543 is a wasteful number, since it uses less digits than its factorization.

3997097999543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302277.

The product of its (nonzero) digits is 4687309620, while the sum is 83.

The spelling of 3997097999543 in words is "three trillion, nine hundred ninety-seven billion, ninety-seven million, nine hundred ninety-nine thousand, five hundred forty-three".