20879327970 has 24 divisors (see below), whose sum is σ = 54286252956. Its totient is φ = 5567820768.

The previous prime is 20879327969. The next prime is 20879327977. The reversal of 20879327970 is 7972397802.

It can be written as a sum of positive squares in 2 ways, for example, as 20260960281 + 618367689 = 142341^2 + 24867^2 .

It is not an unprimeable number, because it can be changed into a prime (20879327977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115996177 + ... + 115996356.

Almost surely, 2^20879327970 is an apocalyptic number.

20879327970 is an abundant number, since it is smaller than the sum of its proper divisors (33406924986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20879327970 is a wasteful number, since it uses less digits than its factorization.

20879327970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231992546 (or 231992543 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 54.

It can be divided in two parts, 2087932 and 7970, that added together give a palindrome (2095902).

The spelling of 20879327970 in words is "twenty billion, eight hundred seventy-nine million, three hundred twenty-seven thousand, nine hundred seventy".