1296763888 has 40 divisors (see below), whose sum is σ = 2873343872. Its totient is φ = 555380928.

The previous prime is 1296763873. The next prime is 1296763921. The reversal of 1296763888 is 8883676921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219631 + ... + 225457.

Almost surely, 2^1296763888 is an apocalyptic number.

It is an amenable number.

1296763888 is an abundant number, since it is smaller than the sum of its proper divisors (1576579984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1296763888 is a wasteful number, since it uses less digits than its factorization.

1296763888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7829 (or 7823 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 58.

The square root of 1296763888 is about 36010.6079926457. The cubic root of 1296763888 is about 1090.4865229809.

The spelling of 1296763888 in words is "one billion, two hundred ninety-six million, seven hundred sixty-three thousand, eight hundred eighty-eight".