127987412090 has 16 divisors (see below), whose sum is σ = 232965852840. Its totient is φ = 50619740160.

The previous prime is 127987412087. The next prime is 127987412101. The reversal of 127987412090 is 90214789721.

It can be written as a sum of positive squares in 4 ways, for example, as 82615430041 + 45371982049 = 287429^2 + 213007^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71902151 + ... + 71903930.

Almost surely, 2^127987412090 is an apocalyptic number.

127987412090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127987412090 is a deficient number, since it is larger than the sum of its proper divisors (104978440750).

127987412090 is a wasteful number, since it uses less digits than its factorization.

127987412090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143806177.

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 127987412090 in words is "one hundred twenty-seven billion, nine hundred eighty-seven million, four hundred twelve thousand, ninety".