5291641991443 has 4 divisors (see below), whose sum is σ = 5291648392888. Its totient is φ = 5291635590000.

The previous prime is 5291641991429. The next prime is 5291641991543. The reversal of 5291641991443 is 3441991461925.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5291641991443 - 2²¹ = 5291639894291 is a prime.

It is a super-6 number, since 6×5291641991443⁶ (a number of 78 digits) contains 666666 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5291641991543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1737933 + ... + 3688318.

It is an arithmetic number, because the mean of its divisors is an integer number (1322912098222).

Almost surely, 2^{5291641991443} is an apocalyptic number.

5291641991443 is a deficient number, since it is larger than the sum of its proper divisors (6401445).

5291641991443 is an equidigital number, since it uses as much as digits as its factorization.

5291641991443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6401444.

The product of its digits is 8398080, while the sum is 58.

The spelling of 5291641991443 in words is "five trillion, two hundred ninety-one billion, six hundred forty-one million, nine hundred ninety-one thousand, four hundred forty-three".