1268405873 has 16 divisors (see below), whose sum is σ = 1514895360. Its totient is φ = 1039315536.

The previous prime is 1268405867. The next prime is 1268405881. The reversal of 1268405873 is 3785048621.

It is not a de Polignac number, because 1268405873 - 2⁸ = 1268405617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1268405813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30683 + ... + 58976.

It is an arithmetic number, because the mean of its divisors is an integer number (94680960).

Almost surely, 2^1268405873 is an apocalyptic number.

It is an amenable number.

1268405873 is a deficient number, since it is larger than the sum of its proper divisors (246489487).

1268405873 is an equidigital number, since it uses as much as digits as its factorization.

1268405873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89756.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 1268405873 is about 35614.6861982525. The cubic root of 1268405873 is about 1082.4788377759.

The spelling of 1268405873 in words is "one billion, two hundred sixty-eight million, four hundred five thousand, eight hundred seventy-three".