1272473233277 has 4 divisors (see below), whose sum is σ = 1273093046940. Its totient is φ = 1271853419616.

The previous prime is 1272473233261. The next prime is 1272473233289. The reversal of 1272473233277 is 7723323742721.

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 743080204441 + 529393028836 = 862021^2 + 727594^2 .

It is a cyclic number.

It is not a de Polignac number, because 1272473233277 - 2⁴ = 1272473233261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272473263277) 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, 309903752 + ... + 309907857.

It is an arithmetic number, because the mean of its divisors is an integer number (318273261735).

Almost surely, 2^{1272473233277} is an apocalyptic number.

It is an amenable number.

1272473233277 is a deficient number, since it is larger than the sum of its proper divisors (619813663).

1272473233277 is an equidigital number, since it uses as much as digits as its factorization.

1272473233277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619813662.

The product of its digits is 4148928, while the sum is 50.

Adding to 1272473233277 its reverse (7723323742721), we get a palindrome (8995796975998).

The spelling of 1272473233277 in words is "one trillion, two hundred seventy-two billion, four hundred seventy-three million, two hundred thirty-three thousand, two hundred seventy-seven".