20127054276731 has 4 divisors (see below), whose sum is σ = 20128774402464. Its totient is φ = 20125334151000.

The previous prime is 20127054276697. The next prime is 20127054276739. The reversal of 20127054276731 is 13767245072102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20127054276731 - 2³⁴ = 20109874407547 is a prime.

It is a super-2 number, since 2×20127054276731² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20127054276739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860045315 + ... + 860068716.

It is an arithmetic number, because the mean of its divisors is an integer number (5032193600616).

Almost surely, 2^{20127054276731} is an apocalyptic number.

20127054276731 is a deficient number, since it is larger than the sum of its proper divisors (1720125733).

20127054276731 is a wasteful number, since it uses less digits than its factorization.

20127054276731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720125732.

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 20127054276731 in words is "twenty trillion, one hundred twenty-seven billion, fifty-four million, two hundred seventy-six thousand, seven hundred thirty-one".