5643994034405 has 8 divisors (see below), whose sum is σ = 7006337422200. Its totient is φ = 4359498840256.

The previous prime is 5643994034401. The next prime is 5643994034477. The reversal of 5643994034405 is 5044304993465.

It can be written as a sum of positive squares in 4 ways, for example, as 2215623319009 + 3428370715396 = 1488497^2 + 1851586^2 .

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 5643994034405 - 2² = 5643994034401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643994034401) 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, 19462048250 + ... + 19462048539.

It is an arithmetic number, because the mean of its divisors is an integer number (875792177775).

Almost surely, 2^{5643994034405} is an apocalyptic number.

It is an amenable number.

5643994034405 is a deficient number, since it is larger than the sum of its proper divisors (1362343387795).

5643994034405 is a wasteful number, since it uses less digits than its factorization.

5643994034405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38924096823.

The product of its (nonzero) digits is 27993600, while the sum is 56.

The spelling of 5643994034405 in words is "five trillion, six hundred forty-three billion, nine hundred ninety-four million, thirty-four thousand, four hundred five".