1264434763 has 2 divisors, whose sum is σ = 1264434764. Its totient is φ = 1264434762.

The previous prime is 1264434739. The next prime is 1264434791. The reversal of 1264434763 is 3674344621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1264434763 is a prime.

It is not a weakly prime, because it can be changed into another prime (1264434163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632217381 + 632217382.

It is an arithmetic number, because the mean of its divisors is an integer number (632217382).

Almost surely, 2^1264434763 is an apocalyptic number.

1264434763 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264434763 is an equidigital number, since it uses as much as digits as its factorization.

1264434763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 40.

The square root of 1264434763 is about 35558.8914759726. The cubic root of 1264434763 is about 1081.3479861838.

The spelling of 1264434763 in words is "one billion, two hundred sixty-four million, four hundred thirty-four thousand, seven hundred sixty-three".