6423541249 has 2 divisors, whose sum is σ = 6423541250. Its totient is φ = 6423541248.

The previous prime is 6423541231. The next prime is 6423541259. The reversal of 6423541249 is 9421453246.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4571788225 + 1851753024 = 67615^2 + 43032^2 .

It is a cyclic number.

It is not a de Polignac number, because 6423541249 - 2¹³ = 6423533057 is a prime.

It is not a weakly prime, because it can be changed into another prime (6423541219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211770624 + 3211770625.

It is an arithmetic number, because the mean of its divisors is an integer number (3211770625).

Almost surely, 2^6423541249 is an apocalyptic number.

It is an amenable number.

6423541249 is a deficient number, since it is larger than the sum of its proper divisors (1).

6423541249 is an equidigital number, since it uses as much as digits as its factorization.

6423541249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 40.

The square root of 6423541249 is about 80146.9977541268. The cubic root of 6423541249 is about 1858.9091812866.

The spelling of 6423541249 in words is "six billion, four hundred twenty-three million, five hundred forty-one thousand, two hundred forty-nine".