18408367802 has 8 divisors (see below), whose sum is σ = 30122783712. Its totient is φ = 8367439900.

The previous prime is 18408367793. The next prime is 18408367819. The reversal of 18408367802 is 20876380481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18408367802² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 418371974 + ... + 418372017.

It is an arithmetic number, because the mean of its divisors is an integer number (3765347964).

Almost surely, 2^18408367802 is an apocalyptic number.

18408367802 is a deficient number, since it is larger than the sum of its proper divisors (11714415910).

18408367802 is a wasteful number, since it uses less digits than its factorization.

18408367802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836744004.

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 18408367802 in words is "eighteen billion, four hundred eight million, three hundred sixty-seven thousand, eight hundred two".