1268316554 has 16 divisors (see below), whose sum is σ = 1993118400. Its totient is φ = 604164000.

The previous prime is 1268316541. The next prime is 1268316563. The reversal of 1268316554 is 4556138621.

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, 43379 + ... + 66470.

It is an arithmetic number, because the mean of its divisors is an integer number (124569900).

Almost surely, 2^1268316554 is an apocalyptic number.

1268316554 is a deficient number, since it is larger than the sum of its proper divisors (724801846).

1268316554 is a wasteful number, since it uses less digits than its factorization.

1268316554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110125.

The product of its digits is 172800, while the sum is 41.

The square root of 1268316554 is about 35613.4322131412. The cubic root of 1268316554 is about 1082.4534284021.

The spelling of 1268316554 in words is "one billion, two hundred sixty-eight million, three hundred sixteen thousand, five hundred fifty-four".