18274821802 has 8 divisors (see below), whose sum is σ = 27495050112. Its totient is φ = 9109805100.

The previous prime is 18274821791. The next prime is 18274821841. The reversal of 18274821802 is 20812847281.

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

It is a super-2 number, since 2×18274821802² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13802074 + ... + 13803397.

It is an arithmetic number, because the mean of its divisors is an integer number (3436881264).

Almost surely, 2^18274821802 is an apocalyptic number.

18274821802 is a deficient number, since it is larger than the sum of its proper divisors (9220228310).

18274821802 is a wasteful number, since it uses less digits than its factorization.

18274821802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27605804.

The product of its (nonzero) digits is 114688, while the sum is 43.

The spelling of 18274821802 in words is "eighteen billion, two hundred seventy-four million, eight hundred twenty-one thousand, eight hundred two".