1268375870 has 16 divisors (see below), whose sum is σ = 2286204480. Its totient is φ = 506655264.

The previous prime is 1268375851. The next prime is 1268375957. The reversal of 1268375870 is 785738621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79190 + ... + 93849.

It is an arithmetic number, because the mean of its divisors is an integer number (142887780).

Almost surely, 2^1268375870 is an apocalyptic number.

1268375870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1268375870 is a deficient number, since it is larger than the sum of its proper divisors (1017828610).

1268375870 is a wasteful number, since it uses less digits than its factorization.

1268375870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173779.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 1268375870 is about 35614.2649790783. The cubic root of 1268375870 is about 1082.4703026875.

The spelling of 1268375870 in words is "one billion, two hundred sixty-eight million, three hundred seventy-five thousand, eight hundred seventy".