22254393787 has 2 divisors, whose sum is σ = 22254393788. Its totient is φ = 22254393786.

The previous prime is 22254393727. The next prime is 22254393793. The reversal of 22254393787 is 78739345222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22254393787 is a prime.

It is not a weakly prime, because it can be changed into another prime (22254393727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11127196893 + 11127196894.

It is an arithmetic number, because the mean of its divisors is an integer number (11127196894).

Almost surely, 2^22254393787 is an apocalyptic number.

22254393787 is a deficient number, since it is larger than the sum of its proper divisors (1).

22254393787 is an equidigital number, since it uses as much as digits as its factorization.

22254393787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 52.

The spelling of 22254393787 in words is "twenty-two billion, two hundred fifty-four million, three hundred ninety-three thousand, seven hundred eighty-seven".