18012485284 has 24 divisors (see below), whose sum is σ = 32051518016. Its totient is φ = 8855028000.

The previous prime is 18012485263. The next prime is 18012485291. The reversal of 18012485284 is 48258421081.

It is a super-2 number, since 2×18012485284² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18012485284.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652849 + ... + 679879.

Almost surely, 2^18012485284 is an apocalyptic number.

It is an amenable number.

18012485284 is a deficient number, since it is larger than the sum of its proper divisors (14039032732).

18012485284 is a wasteful number, since it uses less digits than its factorization.

18012485284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29827 (or 29825 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 43.

The spelling of 18012485284 in words is "eighteen billion, twelve million, four hundred eighty-five thousand, two hundred eighty-four".