127869261156 has 288 divisors, whose sum is σ = 417400395776. Its totient is φ = 32099328000.

The previous prime is 127869261151. The next prime is 127869261181. The reversal of 127869261156 is 651162968721.

It is a happy number.

127869261156 is a `hidden beast` number, since 1 + 278 + 69 + 261 + 1 + 56 = 666.

It is not an unprimeable number, because it can be changed into a prime (127869261151) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6184596 + ... + 6205236.

Almost surely, 2^127869261156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127869261156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208700197888).

127869261156 is an abundant number, since it is smaller than the sum of its proper divisors (289531134620).

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

127869261156 is a wasteful number, since it uses less digits than its factorization.

127869261156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20763 (or 20758 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 127869261156 in words is "one hundred twenty-seven billion, eight hundred sixty-nine million, two hundred sixty-one thousand, one hundred fifty-six".