20257727025371 has 4 divisors (see below), whose sum is σ = 22099338573144. Its totient is φ = 18416115477600.

The previous prime is 20257727025317. The next prime is 20257727025391. The reversal of 20257727025371 is 17352072775202.

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-20257727025371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20257727025391) 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, 920805773870 + ... + 920805773891.

It is an arithmetic number, because the mean of its divisors is an integer number (5524834643286).

Almost surely, 2^{20257727025371} is an apocalyptic number.

20257727025371 is a deficient number, since it is larger than the sum of its proper divisors (1841611547773).

20257727025371 is a wasteful number, since it uses less digits than its factorization.

20257727025371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841611547772.

The product of its (nonzero) digits is 2881200, while the sum is 50.

The spelling of 20257727025371 in words is "twenty trillion, two hundred fifty-seven billion, seven hundred twenty-seven million, twenty-five thousand, three hundred seventy-one".