1275279040005 has 16 divisors (see below), whose sum is σ = 2050804065024. Its totient is φ = 676696287680.

The previous prime is 1275279040001. The next prime is 1275279040039. The reversal of 1275279040005 is 5000409725721.

It is not a de Polignac number, because 1275279040005 - 2² = 1275279040001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275279040001) 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, 215780301 + ... + 215786210.

It is an arithmetic number, because the mean of its divisors is an integer number (128175254064).

Almost surely, 2^{1275279040005} is an apocalyptic number.

1275279040005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1275279040005 is a deficient number, since it is larger than the sum of its proper divisors (775525025019).

1275279040005 is a wasteful number, since it uses less digits than its factorization.

1275279040005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431566716.

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 1275279040005 in words is "one trillion, two hundred seventy-five billion, two hundred seventy-nine million, forty thousand, five".