6403929489533 has 2 divisors, whose sum is σ = 6403929489534. Its totient is φ = 6403929489532.

The previous prime is 6403929489401. The next prime is 6403929489539. The reversal of 6403929489533 is 3359849293046.

6403929489533 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6275090130169 + 128839359364 = 2505013^2 + 358942^2 .

It is a cyclic number.

It is not a de Polignac number, because 6403929489533 - 2³⁶ = 6335210012797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6403929489533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6403929489539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201964744766 + 3201964744767.

It is an arithmetic number, because the mean of its divisors is an integer number (3201964744767).

Almost surely, 2^{6403929489533} is an apocalyptic number.

It is an amenable number.

6403929489533 is a deficient number, since it is larger than the sum of its proper divisors (1).

6403929489533 is an equidigital number, since it uses as much as digits as its factorization.

6403929489533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151165440, while the sum is 65.

The spelling of 6403929489533 in words is "six trillion, four hundred three billion, nine hundred twenty-nine million, four hundred eighty-nine thousand, five hundred thirty-three".