22478479787 has 2 divisors, whose sum is σ = 22478479788. Its totient is φ = 22478479786.

The previous prime is 22478479783. The next prime is 22478479831. The reversal of 22478479787 is 78797487422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22478479787 - 2² = 22478479783 is a prime.

It is not a weakly prime, because it can be changed into another prime (22478479783) 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 as a sum of consecutive naturals, namely, 11239239893 + 11239239894.

It is an arithmetic number, because the mean of its divisors is an integer number (11239239894).

Almost surely, 2^22478479787 is an apocalyptic number.

22478479787 is a deficient number, since it is larger than the sum of its proper divisors (1).

22478479787 is an equidigital number, since it uses as much as digits as its factorization.

22478479787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88510464, while the sum is 65.

The spelling of 22478479787 in words is "twenty-two billion, four hundred seventy-eight million, four hundred seventy-nine thousand, seven hundred eighty-seven".