542173026127 has 4 divisors (see below), whose sum is σ = 542993258296. Its totient is φ = 541352793960.

The previous prime is 542173026107. The next prime is 542173026149. The reversal of 542173026127 is 721620371245.

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 542173026127 - 2¹⁹ = 542172501839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542173026127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542173026107) 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, 410115093 + ... + 410116414.

It is an arithmetic number, because the mean of its divisors is an integer number (135748314574).

Almost surely, 2^542173026127 is an apocalyptic number.

542173026127 is a deficient number, since it is larger than the sum of its proper divisors (820232169).

542173026127 is an equidigital number, since it uses as much as digits as its factorization.

542173026127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820232168.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 542173026127 in words is "five hundred forty-two billion, one hundred seventy-three million, twenty-six thousand, one hundred twenty-seven".