1275265138998 has 16 divisors (see below), whose sum is σ = 2684768713920. Its totient is φ = 402715307016.

The previous prime is 1275265138867. The next prime is 1275265139053. The reversal of 1275265138998 is 8998315625721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5593268040 + ... + 5593268267.

It is an arithmetic number, because the mean of its divisors is an integer number (167798044620).

Almost surely, 2^{1275265138998} is an apocalyptic number.

1275265138998 is an abundant number, since it is smaller than the sum of its proper divisors (1409503574922).

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

1275265138998 is a wasteful number, since it uses less digits than its factorization.

1275265138998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11186536331.

The product of its digits is 65318400, while the sum is 66.

The spelling of 1275265138998 in words is "one trillion, two hundred seventy-five billion, two hundred sixty-five million, one hundred thirty-eight thousand, nine hundred ninety-eight".