1272804510071 has 4 divisors (see below), whose sum is σ = 1284699879432. Its totient is φ = 1260909140712.

The previous prime is 1272804510049. The next prime is 1272804510113. The reversal of 1272804510071 is 1700154082721.

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 1272804510071 - 2³⁰ = 1271730768247 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 (1272804512071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5947684520 + ... + 5947684733.

It is an arithmetic number, because the mean of its divisors is an integer number (321174969858).

Almost surely, 2^{1272804510071} is an apocalyptic number.

1272804510071 is a deficient number, since it is larger than the sum of its proper divisors (11895369361).

1272804510071 is a wasteful number, since it uses less digits than its factorization.

1272804510071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11895369360.

The product of its (nonzero) digits is 31360, while the sum is 38.

Adding to 1272804510071 its reverse (1700154082721), we get a palindrome (2972958592792).

The spelling of 1272804510071 in words is "one trillion, two hundred seventy-two billion, eight hundred four million, five hundred ten thousand, seventy-one".