127877896018 has 12 divisors (see below), whose sum is σ = 192319420158. Its totient is φ = 63771859280.

The previous prime is 127877896007. The next prime is 127877896033. The reversal of 127877896018 is 810698778721.

It can be written as a sum of positive squares in only one way, i.e., 71672392089 + 56205503929 = 267717^2 + 237077^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75438 + ... + 511318.

Almost surely, 2^127877896018 is an apocalyptic number.

127877896018 is a deficient number, since it is larger than the sum of its proper divisors (64441524140).

127877896018 is an frugal number, since it uses more digits than its factorization.

127877896018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436649 (or 436266 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 64.

The spelling of 127877896018 in words is "one hundred twenty-seven billion, eight hundred seventy-seven million, eight hundred ninety-six thousand, eighteen".