1265063012877 has 16 divisors (see below), whose sum is σ = 1744952394240. Its totient is φ = 814275749952.

The previous prime is 1265063012869. The next prime is 1265063012947. The reversal of 1265063012877 is 7782103605621.

It is not a de Polignac number, because 1265063012877 - 2³ = 1265063012869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265063014877) 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, 4739223 + ... + 4999035.

It is an arithmetic number, because the mean of its divisors is an integer number (109059524640).

Almost surely, 2^{1265063012877} is an apocalyptic number.

It is an amenable number.

1265063012877 is a deficient number, since it is larger than the sum of its proper divisors (479889381363).

1265063012877 is a wasteful number, since it uses less digits than its factorization.

1265063012877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315812.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 1265063012877 in words is "one trillion, two hundred sixty-five billion, sixty-three million, twelve thousand, eight hundred seventy-seven".