127157227808 has 90 divisors (see below), whose sum is σ = 271930826349. Its totient is φ = 58530610944.

The previous prime is 127157227807. The next prime is 127157227811. The reversal of 127157227808 is 808722751721.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 8 ways, for example, as 57509795344 + 69647432464 = 239812^2 + 263908^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=252148.

It is not an unprimeable number, because it can be changed into a prime (127157227807) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 340903910 + ... + 340904282.

Almost surely, 2^127157227808 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 127157227808

127157227808 is an abundant number, since it is smaller than the sum of its proper divisors (144773598541).

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

127157227808 is an frugal number, since it uses more digits than its factorization.

127157227808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 50.

Multiplying 127157227808 by its sum of digits (50), we get a square (6357861390400 = 2521480²).

The spelling of 127157227808 in words is "one hundred twenty-seven billion, one hundred fifty-seven million, two hundred twenty-seven thousand, eight hundred eight".