20127347833 has 4 divisors (see below), whose sum is σ = 20821394340. Its totient is φ = 19433301328.

The previous prime is 20127347831. The next prime is 20127347869. The reversal of 20127347833 is 33874372102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4991705104 + 15135642729 = 70652^2 + 123027^2 .

It is a cyclic number.

It is not a de Polignac number, because 20127347833 - 2¹ = 20127347831 is a prime.

It is a super-2 number, since 2×20127347833² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20127347831) 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, 347023210 + ... + 347023267.

It is an arithmetic number, because the mean of its divisors is an integer number (5205348585).

Almost surely, 2^20127347833 is an apocalyptic number.

It is an amenable number.

20127347833 is a deficient number, since it is larger than the sum of its proper divisors (694046507).

20127347833 is an equidigital number, since it uses as much as digits as its factorization.

20127347833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694046506.

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 20127347833 in words is "twenty billion, one hundred twenty-seven million, three hundred forty-seven thousand, eight hundred thirty-three".