18404004010 has 32 divisors (see below), whose sum is σ = 39852282240. Its totient is φ = 5977841472.

The previous prime is 18404003951. The next prime is 18404004011. The reversal of 18404004010 is 1040040481.

It is not an unprimeable number, because it can be changed into a prime (18404004011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6917469 + ... + 6920128.

It is an arithmetic number, because the mean of its divisors is an integer number (1245383820).

Almost surely, 2^18404004010 is an apocalyptic number.

18404004010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18404004010 is an abundant number, since it is smaller than the sum of its proper divisors (21448278230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18404004010 is a wasteful number, since it uses less digits than its factorization.

18404004010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13837630.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 18404004010 its reverse (1040040481), we get a palindrome (19444044491).

The spelling of 18404004010 in words is "eighteen billion, four hundred four million, four thousand, ten".