127861582641047 has 4 divisors (see below), whose sum is σ = 130980157827456. Its totient is φ = 124743007454640.

The previous prime is 127861582640993. The next prime is 127861582641061. The reversal of 127861582641047 is 740146285168721.

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 127861582641047 - 2¹² = 127861582636951 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 (127861582601047) 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, 1559287593143 + ... + 1559287593224.

It is an arithmetic number, because the mean of its divisors is an integer number (32745039456864).

Almost surely, 2^{127861582641047} is an apocalyptic number.

127861582641047 is a deficient number, since it is larger than the sum of its proper divisors (3118575186409).

127861582641047 is an equidigital number, since it uses as much as digits as its factorization.

127861582641047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118575186408.

The product of its (nonzero) digits is 36126720, while the sum is 62.

The spelling of 127861582641047 in words is "one hundred twenty-seven trillion, eight hundred sixty-one billion, five hundred eighty-two million, six hundred forty-one thousand, forty-seven".