20127125464077 has 8 divisors (see below), whose sum is σ = 27159494602464. Its totient is φ = 13256419984208.

The previous prime is 20127125464049. The next prime is 20127125464133. The reversal of 20127125464077 is 77046452172102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20127125464077 - 2⁶ = 20127125464013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20127125464007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40415914338 + ... + 40415914835.

It is an arithmetic number, because the mean of its divisors is an integer number (3394936825308).

Almost surely, 2^{20127125464077} is an apocalyptic number.

It is an amenable number.

20127125464077 is a deficient number, since it is larger than the sum of its proper divisors (7032369138387).

20127125464077 is an equidigital number, since it uses as much as digits as its factorization.

20127125464077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80831829259.

The product of its (nonzero) digits is 1317120, while the sum is 48.

The spelling of 20127125464077 in words is "twenty trillion, one hundred twenty-seven billion, one hundred twenty-five million, four hundred sixty-four thousand, seventy-seven".