5533381818431 has 16 divisors (see below), whose sum is σ = 5948806406400. Its totient is φ = 5128514571648.

The previous prime is 5533381818413. The next prime is 5533381818463. The reversal of 5533381818431 is 1348181833355.

It is not a de Polignac number, because 5533381818431 - 2¹⁰ = 5533381817407 is a prime.

It is a super-2 number, since 2×5533381818431² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5533381818131) 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, 8513741 + ... + 9140598.

It is an arithmetic number, because the mean of its divisors is an integer number (371800400400).

Almost surely, 2^{5533381818431} is an apocalyptic number.

5533381818431 is a deficient number, since it is larger than the sum of its proper divisors (415424587969).

5533381818431 is a wasteful number, since it uses less digits than its factorization.

5533381818431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17654638.

The product of its digits is 4147200, while the sum is 53.

The spelling of 5533381818431 in words is "five trillion, five hundred thirty-three billion, three hundred eighty-one million, eight hundred eighteen thousand, four hundred thirty-one".