1265264243382 has 16 divisors (see below), whose sum is σ = 2568297569472. Its totient is φ = 415459900680.

The previous prime is 1265264243381. The next prime is 1265264243387. The reversal of 1265264243382 is 2833424625621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265264243381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1573711344 + ... + 1573712147.

It is an arithmetic number, because the mean of its divisors is an integer number (160518598092).

Almost surely, 2^{1265264243382} is an apocalyptic number.

1265264243382 is an abundant number, since it is smaller than the sum of its proper divisors (1303033326090).

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

1265264243382 is a wasteful number, since it uses less digits than its factorization.

1265264243382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147423563.

The product of its digits is 3317760, while the sum is 48.

The spelling of 1265264243382 in words is "one trillion, two hundred sixty-five billion, two hundred sixty-four million, two hundred forty-three thousand, three hundred eighty-two".