20762041771 has 4 divisors (see below), whose sum is σ = 20775011544. Its totient is φ = 20749072000.

The previous prime is 20762041757. The next prime is 20762041777. The reversal of 20762041771 is 17714026702.

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

It is a cyclic number.

It is not a de Polignac number, because 20762041771 - 2⁹ = 20762041259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20762041771.

It is not an unprimeable number, because it can be changed into a prime (20762041777) 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 3 ways as a sum of consecutive naturals, for example, 6482485 + ... + 6485686.

It is an arithmetic number, because the mean of its divisors is an integer number (5193752886).

Almost surely, 2^20762041771 is an apocalyptic number.

20762041771 is a deficient number, since it is larger than the sum of its proper divisors (12969773).

20762041771 is a wasteful number, since it uses less digits than its factorization.

20762041771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12969772.

The product of its (nonzero) digits is 32928, while the sum is 37.

The spelling of 20762041771 in words is "twenty billion, seven hundred sixty-two million, forty-one thousand, seven hundred seventy-one".