20932791767 has 4 divisors (see below), whose sum is σ = 20955570480. Its totient is φ = 20910013056.

The previous prime is 20932791731. The next prime is 20932791787. The reversal of 20932791767 is 76719723902.

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 20932791767 - 2¹² = 20932787671 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 (20932791727) 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, 11387978 + ... + 11389815.

It is an arithmetic number, because the mean of its divisors is an integer number (5238892620).

Almost surely, 2^20932791767 is an apocalyptic number.

20932791767 is a deficient number, since it is larger than the sum of its proper divisors (22778713).

20932791767 is an equidigital number, since it uses as much as digits as its factorization.

20932791767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22778712.

The product of its (nonzero) digits is 2000376, while the sum is 53.

The spelling of 20932791767 in words is "twenty billion, nine hundred thirty-two million, seven hundred ninety-one thousand, seven hundred sixty-seven".