1275265139005 has 32 divisors (see below), whose sum is σ = 1798902701568. Its totient is φ = 855623769600.

The previous prime is 1275265138867. The next prime is 1275265139053. The reversal of 1275265139005 is 5009315625721.

It is not a de Polignac number, because 1275265139005 - 2²⁵ = 1275231584573 is a prime.

It is a super-2 number, since 2×1275265139005² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 712332 + ... + 1748698.

It is an arithmetic number, because the mean of its divisors is an integer number (56215709424).

Almost surely, 2^{1275265139005} is an apocalyptic number.

It is an amenable number.

1275265139005 is a deficient number, since it is larger than the sum of its proper divisors (523637562563).

1275265139005 is a wasteful number, since it uses less digits than its factorization.

1275265139005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038117.

The product of its (nonzero) digits is 567000, while the sum is 46.

The spelling of 1275265139005 in words is "one trillion, two hundred seventy-five billion, two hundred sixty-five million, one hundred thirty-nine thousand, five".