5521878532943 has 2 divisors, whose sum is σ = 5521878532944. Its totient is φ = 5521878532942.

The previous prime is 5521878532871. The next prime is 5521878532997. The reversal of 5521878532943 is 3492358781255.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5521878532943 is a prime.

It is a super-2 number, since 2×5521878532943² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5521878537943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760939266471 + 2760939266472.

It is an arithmetic number, because the mean of its divisors is an integer number (2760939266472).

Almost surely, 2^{5521878532943} is an apocalyptic number.

5521878532943 is a deficient number, since it is larger than the sum of its proper divisors (1).

5521878532943 is an equidigital number, since it uses as much as digits as its factorization.

5521878532943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576000, while the sum is 62.

The spelling of 5521878532943 in words is "five trillion, five hundred twenty-one billion, eight hundred seventy-eight million, five hundred thirty-two thousand, nine hundred forty-three".