18051454836 has 72 divisors (see below), whose sum is σ = 45849585600. Its totient is φ = 5988280320.

The previous prime is 18051454831. The next prime is 18051454843. The reversal of 18051454836 is 63845415081.

18051454836 is a `hidden beast` number, since 1 + 8 + 0 + 514 + 54 + 83 + 6 = 666.

It is a super-2 number, since 2×18051454836² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18051454791 and 18051454800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18051454831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8283195 + ... + 8285373.

It is an arithmetic number, because the mean of its divisors is an integer number (636799800).

Almost surely, 2^18051454836 is an apocalyptic number.

It is an amenable number.

18051454836 is an abundant number, since it is smaller than the sum of its proper divisors (27798130764).

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

18051454836 is a wasteful number, since it uses less digits than its factorization.

18051454836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3189 (or 3184 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 18051454836 in words is "eighteen billion, fifty-one million, four hundred fifty-four thousand, eight hundred thirty-six".