18077947822 has 16 divisors (see below), whose sum is σ = 31139049600. Its totient is φ = 7784762040.

The previous prime is 18077947799. The next prime is 18077947831. The reversal of 18077947822 is 22874977081.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 21623922 + ... + 21624757.

It is an arithmetic number, because the mean of its divisors is an integer number (1946190600).

Almost surely, 2^18077947822 is an apocalyptic number.

18077947822 is a deficient number, since it is larger than the sum of its proper divisors (13061101778).

18077947822 is a wasteful number, since it uses less digits than its factorization.

18077947822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43248711.

The product of its (nonzero) digits is 3161088, while the sum is 55.

The spelling of 18077947822 in words is "eighteen billion, seventy-seven million, nine hundred forty-seven thousand, eight hundred twenty-two".