127861799046849 has 24 divisors (see below), whose sum is σ = 212591960060480. Its totient is φ = 72538245703008.

The previous prime is 127861799046827. The next prime is 127861799046851. The reversal of 127861799046849 is 948640997168721.

127861799046849 is a `hidden beast` number, since 1 + 2 + 7 + 8 + 61 + 7 + 9 + 90 + 468 + 4 + 9 = 666.

It is not a de Polignac number, because 127861799046849 - 2¹⁶ = 127861798981313 is a prime.

It is a super-3 number, since 3×127861799046849³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (127861799046869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7300539322 + ... + 7300556835.

Almost surely, 2^{127861799046849} is an apocalyptic number.

It is an amenable number.

127861799046849 is a deficient number, since it is larger than the sum of its proper divisors (84730161013631).

127861799046849 is a wasteful number, since it uses less digits than its factorization.

127861799046849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14601096309 (or 14601096306 counting only the distinct ones).

The product of its (nonzero) digits is 2633637888, while the sum is 81.

The spelling of 127861799046849 in words is "one hundred twenty-seven trillion, eight hundred sixty-one billion, seven hundred ninety-nine million, forty-six thousand, eight hundred forty-nine".