127406258172 has 18 divisors (see below), whose sum is σ = 322054708248. Its totient is φ = 42468752712.

The previous prime is 127406258159. The next prime is 127406258179. The reversal of 127406258172 is 271852604721.

127406258172 is a `hidden beast` number, since 1 + 2 + 7 + 4 + 0 + 62 + 581 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127406258179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1769531328 + ... + 1769531399.

It is an arithmetic number, because the mean of its divisors is an integer number (17891928236).

Almost surely, 2^127406258172 is an apocalyptic number.

127406258172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127406258172 is an abundant number, since it is smaller than the sum of its proper divisors (194648450076).

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

127406258172 is a wasteful number, since it uses less digits than its factorization.

127406258172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539062737 (or 3539062732 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 127406258172 in words is "one hundred twenty-seven billion, four hundred six million, two hundred fifty-eight thousand, one hundred seventy-two".