1276432053137 has 4 divisors (see below), whose sum is σ = 1278500825316. Its totient is φ = 1274363280960.

The previous prime is 1276432053131. The next prime is 1276432053173. The reversal of 1276432053137 is 7313502346721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 193467142801 + 1082964910336 = 439849^2 + 1040656^2 .

It is a cyclic number.

It is not a de Polignac number, because 1276432053137 - 2²⁰ = 1276431004561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1276432053131) 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 3 ways as a sum of consecutive naturals, for example, 1034385164 + ... + 1034386397.

It is an arithmetic number, because the mean of its divisors is an integer number (319625206329).

Almost surely, 2^{1276432053137} is an apocalyptic number.

It is an amenable number.

1276432053137 is a deficient number, since it is larger than the sum of its proper divisors (2068772179).

1276432053137 is an equidigital number, since it uses as much as digits as its factorization.

1276432053137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068772178.

The product of its (nonzero) digits is 635040, while the sum is 44.

Adding to 1276432053137 its reverse (7313502346721), we get a palindrome (8589934399858).

The spelling of 1276432053137 in words is "one trillion, two hundred seventy-six billion, four hundred thirty-two million, fifty-three thousand, one hundred thirty-seven".