18264228402 has 16 divisors (see below), whose sum is σ = 41746807872. Its totient is φ = 5218350960.

The previous prime is 18264228377. The next prime is 18264228407. The reversal of 18264228402 is 20482246281.

It is not an unprimeable number, because it can be changed into a prime (18264228407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217431249 + ... + 217431332.

It is an arithmetic number, because the mean of its divisors is an integer number (2609175492).

Almost surely, 2^18264228402 is an apocalyptic number.

18264228402 is an abundant number, since it is smaller than the sum of its proper divisors (23482579470).

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

18264228402 is a wasteful number, since it uses less digits than its factorization.

18264228402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434862593.

The product of its (nonzero) digits is 98304, while the sum is 39.

The spelling of 18264228402 in words is "eighteen billion, two hundred sixty-four million, two hundred twenty-eight thousand, four hundred two".