127563323365721 has 8 divisors (see below), whose sum is σ = 128805197601024. Its totient is φ = 126322369383280.

The previous prime is 127563323365661. The next prime is 127563323365759.

127563323365721 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 127563323365721 - 2³⁴ = 127546143496537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127563323365781) 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, 229784630 + ... + 230339103.

It is an arithmetic number, because the mean of its divisors is an integer number (16100649700128).

Almost surely, 2^{127563323365721} is an apocalyptic number.

It is an amenable number.

127563323365721 is a deficient number, since it is larger than the sum of its proper divisors (1241874235303).

127563323365721 is a wasteful number, since it uses less digits than its factorization.

127563323365721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460126431.

The product of its digits is 28576800, while the sum is 56.

The spelling of 127563323365721 in words is "one hundred twenty-seven trillion, five hundred sixty-three billion, three hundred twenty-three million, three hundred sixty-five thousand, seven hundred twenty-one".