1286968478 has 8 divisors (see below), whose sum is σ = 1933323168. Its totient is φ = 642527424.

The previous prime is 1286968453. The next prime is 1286968483. The reversal of 1286968478 is 8748696821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476726 + ... + 479417.

It is an arithmetic number, because the mean of its divisors is an integer number (241665396).

Almost surely, 2^1286968478 is an apocalyptic number.

1286968478 is a deficient number, since it is larger than the sum of its proper divisors (646354690).

1286968478 is an equidigital number, since it uses as much as digits as its factorization.

1286968478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956818.

The product of its digits is 9289728, while the sum is 59.

The square root of 1286968478 is about 35874.3428929367. The cubic root of 1286968478 is about 1087.7338317460.

The spelling of 1286968478 in words is "one billion, two hundred eighty-six million, nine hundred sixty-eight thousand, four hundred seventy-eight".