18777204932 has 6 divisors (see below), whose sum is σ = 32860108638. Its totient is φ = 9388602464.

The previous prime is 18777204931. The next prime is 18777205009. The reversal of 18777204932 is 23940277781.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18359166016 + 418038916 = 135496^2 + 20446^2 .

It is not an unprimeable number, because it can be changed into a prime (18777204931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2347150613 + ... + 2347150620.

It is an arithmetic number, because the mean of its divisors is an integer number (5476684773).

Almost surely, 2^18777204932 is an apocalyptic number.

It is an amenable number.

18777204932 is a deficient number, since it is larger than the sum of its proper divisors (14082903706).

18777204932 is a wasteful number, since it uses less digits than its factorization.

18777204932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694301237 (or 4694301235 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 18777204932 in words is "eighteen billion, seven hundred seventy-seven million, two hundred four thousand, nine hundred thirty-two".