127818684740 has 12 divisors (see below), whose sum is σ = 268419237996. Its totient is φ = 51127473888.

The previous prime is 127818684713. The next prime is 127818684757. The reversal of 127818684740 is 47486818721.

It can be written as a sum of positive squares in 2 ways, for example, as 52811716864 + 75006967876 = 229808^2 + 273874^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3195467099 + ... + 3195467138.

It is an arithmetic number, because the mean of its divisors is an integer number (22368269833).

Almost surely, 2^127818684740 is an apocalyptic number.

127818684740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127818684740 is an abundant number, since it is smaller than the sum of its proper divisors (140600553256).

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

127818684740 is a wasteful number, since it uses less digits than its factorization.

127818684740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390934246 (or 6390934244 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 56.

The spelling of 127818684740 in words is "one hundred twenty-seven billion, eight hundred eighteen million, six hundred eighty-four thousand, seven hundred forty".