20477010443 has 8 divisors (see below), whose sum is σ = 20639253600. Its totient is φ = 20315239360.

The previous prime is 20477010401. The next prime is 20477010479. The reversal of 20477010443 is 34401077402.

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 20477010443 - 2²⁰ = 20475961867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20477010143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30668 + ... + 204681.

It is an arithmetic number, because the mean of its divisors is an integer number (2579906700).

Almost surely, 2^20477010443 is an apocalyptic number.

20477010443 is a deficient number, since it is larger than the sum of its proper divisors (162243157).

20477010443 is a wasteful number, since it uses less digits than its factorization.

20477010443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236037.

The product of its (nonzero) digits is 18816, while the sum is 32.

Adding to 20477010443 its reverse (34401077402), we get a palindrome (54878087845).

The spelling of 20477010443 in words is "twenty billion, four hundred seventy-seven million, ten thousand, four hundred forty-three".