22780720927 has 2 divisors, whose sum is σ = 22780720928. Its totient is φ = 22780720926.

The previous prime is 22780720889. The next prime is 22780720943. The reversal of 22780720927 is 72902708722.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22780720927 is a prime.

It is a super-2 number, since 2×22780720927² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22780721927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11390360463 + 11390360464.

It is an arithmetic number, because the mean of its divisors is an integer number (11390360464).

Almost surely, 2^22780720927 is an apocalyptic number.

22780720927 is a deficient number, since it is larger than the sum of its proper divisors (1).

22780720927 is an equidigital number, since it uses as much as digits as its factorization.

22780720927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 22780720927 in words is "twenty-two billion, seven hundred eighty million, seven hundred twenty thousand, nine hundred twenty-seven".