20740127871 has 8 divisors (see below), whose sum is σ = 27654170544. Its totient is φ = 13826418560.

The previous prime is 20740127803. The next prime is 20740127909. The reversal of 20740127871 is 17872104702.

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 20740127871 - 2⁷ = 20740127743 is a prime.

It is a super-4 number, since 4×20740127871⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20740127671) 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, 188545 + ... + 277541.

It is an arithmetic number, because the mean of its divisors is an integer number (3456771318).

Almost surely, 2^20740127871 is an apocalyptic number.

20740127871 is a deficient number, since it is larger than the sum of its proper divisors (6914042673).

20740127871 is an equidigital number, since it uses as much as digits as its factorization.

20740127871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166681.

The product of its (nonzero) digits is 43904, while the sum is 39.

The spelling of 20740127871 in words is "twenty billion, seven hundred forty million, one hundred twenty-seven thousand, eight hundred seventy-one".