127713942653127 has 4 divisors (see below), whose sum is σ = 170285256870840. Its totient is φ = 85142628435416.

The previous prime is 127713942653111. The next prime is 127713942653147. The reversal of 127713942653127 is 721356249317721.

It is a happy number.

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 127713942653127 - 2⁴ = 127713942653111 is a prime.

It is a super-2 number, since 2×127713942653127² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127713942653107) 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, 21285657108852 + ... + 21285657108857.

It is an arithmetic number, because the mean of its divisors is an integer number (42571314217710).

Almost surely, 2^{127713942653127} is an apocalyptic number.

127713942653127 is a deficient number, since it is larger than the sum of its proper divisors (42571314217713).

127713942653127 is an equidigital number, since it uses as much as digits as its factorization.

127713942653127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42571314217712.

The product of its digits is 26671680, while the sum is 60.

The spelling of 127713942653127 in words is "one hundred twenty-seven trillion, seven hundred thirteen billion, nine hundred forty-two million, six hundred fifty-three thousand, one hundred twenty-seven".