1264129472 has 14 divisors (see below), whose sum is σ = 2508507048. Its totient is φ = 632064704.

The previous prime is 1264129453. The next prime is 1264129499. The reversal of 1264129472 is 2749214621.

It is a congruent number.

It is an unprimeable number.

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, 9875948 + ... + 9876075.

Almost surely, 2^1264129472 is an apocalyptic number.

It is an amenable number.

1264129472 is a deficient number, since it is larger than the sum of its proper divisors (1244377576).

1264129472 is an equidigital number, since it uses as much as digits as its factorization.

1264129472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19752035 (or 19752025 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 1264129472 is about 35554.5984648962. The cubic root of 1264129472 is about 1081.2609506192.

The spelling of 1264129472 in words is "one billion, two hundred sixty-four million, one hundred twenty-nine thousand, four hundred seventy-two".