20127555863798 has 32 divisors (see below), whose sum is σ = 31232027379168. Its totient is φ = 9722182982400.

The previous prime is 20127555863749. The next prime is 20127555863809. The reversal of 20127555863798 is 89736855572102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455936 + ... + 6361052.

It is an arithmetic number, because the mean of its divisors is an integer number (976000855599).

Almost surely, 2^{20127555863798} is an apocalyptic number.

20127555863798 is a deficient number, since it is larger than the sum of its proper divisors (11104471515370).

20127555863798 is a wasteful number, since it uses less digits than its factorization.

20127555863798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5905568.

The product of its (nonzero) digits is 254016000, while the sum is 68.

The spelling of 20127555863798 in words is "twenty trillion, one hundred twenty-seven billion, five hundred fifty-five million, eight hundred sixty-three thousand, seven hundred ninety-eight".