127221876342 has 128 divisors (see below), whose sum is σ = 313373491200. Its totient is φ = 37935799200.

The previous prime is 127221876329. The next prime is 127221876359. The reversal of 127221876342 is 243678122721.

127221876342 is a `hidden beast` number, since 1 + 2 + 7 + 2 + 2 + 1 + 8 + 7 + 634 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14401867 + ... + 14410697.

It is an arithmetic number, because the mean of its divisors is an integer number (2448230400).

Almost surely, 2^127221876342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127221876342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156686745600).

127221876342 is an abundant number, since it is smaller than the sum of its proper divisors (186151614858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127221876342 is a wasteful number, since it uses less digits than its factorization.

127221876342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9239 (or 9233 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The spelling of 127221876342 in words is "one hundred twenty-seven billion, two hundred twenty-one million, eight hundred seventy-six thousand, three hundred forty-two".