1265127750264 has 32 divisors (see below), whose sum is σ = 3614650715520. Its totient is φ = 361465071456.

The previous prime is 1265127750233. The next prime is 1265127750269. The reversal of 1265127750264 is 4620577215621.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265127750269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3765260994 + ... + 3765261329.

It is an arithmetic number, because the mean of its divisors is an integer number (112957834860).

Almost surely, 2^{1265127750264} is an apocalyptic number.

1265127750264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1265127750264 is an abundant number, since it is smaller than the sum of its proper divisors (2349522965256).

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

1265127750264 is a wasteful number, since it uses less digits than its factorization.

1265127750264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7530522339 (or 7530522335 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 1265127750264 in words is "one trillion, two hundred sixty-five billion, one hundred twenty-seven million, seven hundred fifty thousand, two hundred sixty-four".