1272701807051 has 4 divisors (see below), whose sum is σ = 1273533096504. Its totient is φ = 1271870517600.

The previous prime is 1272701807029. The next prime is 1272701807057. The reversal of 1272701807051 is 1507081072721.

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

It is a cyclic number.

It is not a de Polignac number, because 1272701807051 - 2¹⁰ = 1272701806027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1272701807057) 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, 415642430 + ... + 415645491.

It is an arithmetic number, because the mean of its divisors is an integer number (318383274126).

Almost surely, 2^{1272701807051} is an apocalyptic number.

1272701807051 is a deficient number, since it is larger than the sum of its proper divisors (831289453).

1272701807051 is an equidigital number, since it uses as much as digits as its factorization.

1272701807051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831289452.

The product of its (nonzero) digits is 54880, while the sum is 41.

Adding to 1272701807051 its reverse (1507081072721), we get a palindrome (2779782879772).

The spelling of 1272701807051 in words is "one trillion, two hundred seventy-two billion, seven hundred one million, eight hundred seven thousand, fifty-one".