127590552681 has 4 divisors (see below), whose sum is σ = 170120736912. Its totient is φ = 85060368452.

The previous prime is 127590552631. The next prime is 127590552697. The reversal of 127590552681 is 186255095721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 127590552681 - 2⁷ = 127590552553 is a prime.

It is a super-2 number, since 2×127590552681² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127590552631) 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, 21265092111 + ... + 21265092116.

It is an arithmetic number, because the mean of its divisors is an integer number (42530184228).

Almost surely, 2^127590552681 is an apocalyptic number.

It is an amenable number.

127590552681 is a deficient number, since it is larger than the sum of its proper divisors (42530184231).

127590552681 is an equidigital number, since it uses as much as digits as its factorization.

127590552681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42530184230.

The product of its (nonzero) digits is 1512000, while the sum is 51.

The spelling of 127590552681 in words is "one hundred twenty-seven billion, five hundred ninety million, five hundred fifty-two thousand, six hundred eighty-one".