6464782451 has 2 divisors, whose sum is σ = 6464782452. Its totient is φ = 6464782450.

The previous prime is 6464782417. The next prime is 6464782453. The reversal of 6464782451 is 1542874646.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6464782451 - 2²⁶ = 6397673587 is a prime.

Together with 6464782453, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6464782396 and 6464782405.

It is not a weakly prime, because it can be changed into another prime (6464782453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3232391225 + 3232391226.

It is an arithmetic number, because the mean of its divisors is an integer number (3232391226).

Almost surely, 2^6464782451 is an apocalyptic number.

6464782451 is a deficient number, since it is larger than the sum of its proper divisors (1).

6464782451 is an equidigital number, since it uses as much as digits as its factorization.

6464782451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 47.

The square root of 6464782451 is about 80403.8708707485. The cubic root of 6464782451 is about 1862.8789626663.

The spelling of 6464782451 in words is "six billion, four hundred sixty-four million, seven hundred eighty-two thousand, four hundred fifty-one".