20444932971 has 12 divisors (see below), whose sum is σ = 29719671072. Its totient is φ = 13543139376.

The previous prime is 20444932943. The next prime is 20444932993. The reversal of 20444932971 is 17923944402.

It is not a de Polignac number, because 20444932971 - 2²² = 20440738667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20444932471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7233171 + ... + 7235996.

It is an arithmetic number, because the mean of its divisors is an integer number (2476639256).

Almost surely, 2^20444932971 is an apocalyptic number.

20444932971 is a deficient number, since it is larger than the sum of its proper divisors (9274738101).

20444932971 is a wasteful number, since it uses less digits than its factorization.

20444932971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14469330 (or 14469327 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 20444932971 in words is "twenty billion, four hundred forty-four million, nine hundred thirty-two thousand, nine hundred seventy-one".