127864860541061 has 4 divisors (see below), whose sum is σ = 146131269189792. Its totient is φ = 109598451892332.

The previous prime is 127864860541009. The next prime is 127864860541123. The reversal of 127864860541061 is 160145068468721.

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 127864860541061 - 2²⁶ = 127864793432197 is a prime.

It is a super-2 number, since 2×127864860541061² (a number of 29 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 (127864860541961) 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, 9133204324355 + ... + 9133204324368.

It is an arithmetic number, because the mean of its divisors is an integer number (36532817297448).

Almost surely, 2^{127864860541061} is an apocalyptic number.

It is an amenable number.

127864860541061 is a deficient number, since it is larger than the sum of its proper divisors (18266408648731).

127864860541061 is an equidigital number, since it uses as much as digits as its factorization.

127864860541061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18266408648730.

The product of its (nonzero) digits is 15482880, while the sum is 59.

The spelling of 127864860541061 in words is "one hundred twenty-seven trillion, eight hundred sixty-four billion, eight hundred sixty million, five hundred forty-one thousand, sixty-one".