18857775304 has 8 divisors (see below), whose sum is σ = 35358328710. Its totient is φ = 9428887648.

The previous prime is 18857775301. The next prime is 18857775353. The reversal of 18857775304 is 40357775881.

It can be written as a sum of positive squares in only one way, i.e., 12927235204 + 5930540100 = 113698^2 + 77010^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (18857775301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1178610949 + ... + 1178610964.

Almost surely, 2^18857775304 is an apocalyptic number.

It is an amenable number.

18857775304 is a deficient number, since it is larger than the sum of its proper divisors (16500553406).

18857775304 is a wasteful number, since it uses less digits than its factorization.

18857775304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357221919 (or 2357221915 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 55.

The spelling of 18857775304 in words is "eighteen billion, eight hundred fifty-seven million, seven hundred seventy-five thousand, three hundred four".