20822748767 has 4 divisors (see below), whose sum is σ = 20825239896. Its totient is φ = 20820257640.

The previous prime is 20822748733. The next prime is 20822748781. The reversal of 20822748767 is 76784722802.

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 20822748767 - 2¹⁴ = 20822732383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20822741767) 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, 1232984 + ... + 1249757.

It is an arithmetic number, because the mean of its divisors is an integer number (5206309974).

Almost surely, 2^20822748767 is an apocalyptic number.

20822748767 is a deficient number, since it is larger than the sum of its proper divisors (2491129).

20822748767 is an equidigital number, since it uses as much as digits as its factorization.

20822748767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491128.

The product of its (nonzero) digits is 4214784, while the sum is 53.

The spelling of 20822748767 in words is "twenty billion, eight hundred twenty-two million, seven hundred forty-eight thousand, seven hundred sixty-seven".