20127732574151 has 4 divisors (see below), whose sum is σ = 20127770119872. Its totient is φ = 20127695028432.

The previous prime is 20127732574127. The next prime is 20127732574211. The reversal of 20127732574151 is 15147523772102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20127732574151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20127732574096 and 20127732574105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20127732574111) 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, 17956910 + ... + 19044843.

It is an arithmetic number, because the mean of its divisors is an integer number (5031942529968).

Almost surely, 2^{20127732574151} is an apocalyptic number.

20127732574151 is a deficient number, since it is larger than the sum of its proper divisors (37545721).

20127732574151 is an equidigital number, since it uses as much as digits as its factorization.

20127732574151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37545720.

The product of its (nonzero) digits is 823200, while the sum is 47.

The spelling of 20127732574151 in words is "twenty trillion, one hundred twenty-seven billion, seven hundred thirty-two million, five hundred seventy-four thousand, one hundred fifty-one".