3551243248543 has 32 divisors (see below), whose sum is σ = 3999299754240. Its totient is φ = 3133459929600.

The previous prime is 3551243248541. The next prime is 3551243248571. The reversal of 3551243248543 is 3458423421553.

It is a cyclic number.

It is not a de Polignac number, because 3551243248543 - 2¹ = 3551243248541 is a prime.

It is a super-2 number, since 2×3551243248543² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551243248541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65316696 + ... + 65371042.

It is an arithmetic number, because the mean of its divisors is an integer number (124978117320).

Almost surely, 2^{3551243248543} is an apocalyptic number.

3551243248543 is a deficient number, since it is larger than the sum of its proper divisors (448056505697).

3551243248543 is a wasteful number, since it uses less digits than its factorization.

3551243248543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56487.

The product of its digits is 6912000, while the sum is 49.

The spelling of 3551243248543 in words is "three trillion, five hundred fifty-one billion, two hundred forty-three million, two hundred forty-eight thousand, five hundred forty-three".