18024640476 has 48 divisors (see below), whose sum is σ = 42325920000. Its totient is φ = 5969976192.

The previous prime is 18024640471. The next prime is 18024640499. The reversal of 18024640476 is 67404642081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18024640471) 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, 1388745 + ... + 1401663.

It is an arithmetic number, because the mean of its divisors is an integer number (881790000).

Almost surely, 2^18024640476 is an apocalyptic number.

It is an amenable number.

18024640476 is an abundant number, since it is smaller than the sum of its proper divisors (24301279524).

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

18024640476 is a wasteful number, since it uses less digits than its factorization.

18024640476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13658 (or 13656 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 18024640476 in words is "eighteen billion, twenty-four million, six hundred forty thousand, four hundred seventy-six".