1265967876 has 48 divisors (see below), whose sum is σ = 3047253440. Its totient is φ = 408758400.

The previous prime is 1265967851. The next prime is 1265967893. The reversal of 1265967876 is 6787695621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95451 + ... + 107901.

Almost surely, 2^1265967876 is an apocalyptic number.

It is an amenable number.

1265967876 is an abundant number, since it is smaller than the sum of its proper divisors (1781285564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1265967876 is a wasteful number, since it uses less digits than its factorization.

1265967876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12724 (or 12722 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 57.

The square root of 1265967876 is about 35580.4423244006. The cubic root of 1265967876 is about 1081.7848504443.

The spelling of 1265967876 in words is "one billion, two hundred sixty-five million, nine hundred sixty-seven thousand, eight hundred seventy-six".