1296582668 has 24 divisors (see below), whose sum is σ = 2282397264. Its totient is φ = 644480000.

The previous prime is 1296582641. The next prime is 1296582691. The reversal of 1296582668 is 8662856921.

It is a super-2 number, since 2×1296582668² = 3362253229915996448, which contains 22 as substring.

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, 763196 + ... + 764892.

It is an arithmetic number, because the mean of its divisors is an integer number (95099886).

Almost surely, 2^1296582668 is an apocalyptic number.

It is an amenable number.

1296582668 is a deficient number, since it is larger than the sum of its proper divisors (985814596).

1296582668 is a wasteful number, since it uses less digits than its factorization.

1296582668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713 (or 2711 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 53.

The square root of 1296582668 is about 36008.0917017273. The cubic root of 1296582668 is about 1090.4357228890.

The spelling of 1296582668 in words is "one billion, two hundred ninety-six million, five hundred eighty-two thousand, six hundred sixty-eight".