1272938129319 has 8 divisors (see below), whose sum is σ = 1722582941440. Its totient is φ = 835959368376.

The previous prime is 1272938129297. The next prime is 1272938129339. The reversal of 1272938129319 is 9139218392721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1272938129319 - 2⁸ = 1272938129063 is a prime.

It is a super-2 number, since 2×1272938129319² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272938129339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3166512559 + ... + 3166512960.

It is an arithmetic number, because the mean of its divisors is an integer number (215322867680).

Almost surely, 2^{1272938129319} is an apocalyptic number.

1272938129319 is a deficient number, since it is larger than the sum of its proper divisors (449644812121).

1272938129319 is an equidigital number, since it uses as much as digits as its factorization.

1272938129319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6333025589.

The product of its digits is 2939328, while the sum is 57.

The spelling of 1272938129319 in words is "one trillion, two hundred seventy-two billion, nine hundred thirty-eight million, one hundred twenty-nine thousand, three hundred nineteen".