543891940403 has 16 divisors (see below), whose sum is σ = 638785995456. Its totient is φ = 453369346560.

The previous prime is 543891940391. The next prime is 543891940507. The reversal of 543891940403 is 304049198345.

It is a cyclic number.

It is not a de Polignac number, because 543891940403 - 2¹² = 543891936307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (543891940003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2937476 + ... + 3117137.

It is an arithmetic number, because the mean of its divisors is an integer number (39924124716).

Almost surely, 2^543891940403 is an apocalyptic number.

543891940403 is a deficient number, since it is larger than the sum of its proper divisors (94894055053).

543891940403 is a wasteful number, since it uses less digits than its factorization.

543891940403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6054974.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 543891940403 in words is "five hundred forty-three billion, eight hundred ninety-one million, nine hundred forty thousand, four hundred three".