127187057772 has 36 divisors (see below), whose sum is σ = 321519894696. Its totient is φ = 42393144000.

The previous prime is 127187057689. The next prime is 127187057773. The reversal of 127187057772 is 277750781721.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (127187057773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560248 + ... + 753824.

It is an arithmetic number, because the mean of its divisors is an integer number (8931108186).

Almost surely, 2^127187057772 is an apocalyptic number.

127187057772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127187057772 is an abundant number, since it is smaller than the sum of its proper divisors (194332836924).

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

127187057772 is a wasteful number, since it uses less digits than its factorization.

127187057772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211838 (or 211833 counting only the distinct ones).

The product of its (nonzero) digits is 2689120, while the sum is 54.

The spelling of 127187057772 in words is "one hundred twenty-seven billion, one hundred eighty-seven million, fifty-seven thousand, seven hundred seventy-two".