1264477493 has 16 divisors (see below), whose sum is σ = 1412665920. Its totient is φ = 1124787456.

The previous prime is 1264477483. The next prime is 1264477537. The reversal of 1264477493 is 3947744621.

It is not a de Polignac number, because 1264477493 - 2¹⁸ = 1264215349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264477483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138671 + ... + 147507.

It is an arithmetic number, because the mean of its divisors is an integer number (88291620).

Almost surely, 2^1264477493 is an apocalyptic number.

It is an amenable number.

1264477493 is a deficient number, since it is larger than the sum of its proper divisors (148188427).

1264477493 is a wasteful number, since it uses less digits than its factorization.

1264477493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9316.

The product of its digits is 1016064, while the sum is 47.

The square root of 1264477493 is about 35559.4923051497. The cubic root of 1264477493 is about 1081.3601669833.

The spelling of 1264477493 in words is "one billion, two hundred sixty-four million, four hundred seventy-seven thousand, four hundred ninety-three".