127792401242 has 16 divisors (see below), whose sum is σ = 210198341952. Its totient is φ = 57786481920.

The previous prime is 127792401181. The next prime is 127792401251. The reversal of 127792401242 is 242104297721.

It is a self number, because there is not a number n which added to its sum of digits gives 127792401242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15044318 + ... + 15052809.

It is an arithmetic number, because the mean of its divisors is an integer number (13137396372).

Almost surely, 2^127792401242 is an apocalyptic number.

127792401242 is a deficient number, since it is larger than the sum of its proper divisors (82405940710).

127792401242 is a wasteful number, since it uses less digits than its factorization.

127792401242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30097333.

The product of its (nonzero) digits is 112896, while the sum is 41.

Adding to 127792401242 its reverse (242104297721), we get a palindrome (369896698963).

The spelling of 127792401242 in words is "one hundred twenty-seven billion, seven hundred ninety-two million, four hundred one thousand, two hundred forty-two".