18151286472 has 144 divisors (see below), whose sum is σ = 54113377500. Its totient is φ = 5492424960.

The previous prime is 18151286467. The next prime is 18151286477. The reversal of 18151286472 is 27468215181.

18151286472 is a `hidden beast` number, since 1 + 8 + 1 + 512 + 8 + 64 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (18151286467) and next prime (18151286477).

It can be written as a sum of positive squares in 2 ways, for example, as 17756628516 + 394657956 = 133254^2 + 19866^2 .

It is a super-2 number, since 2×18151286472² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18151286477) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 9312154 + ... + 9314102.

Almost surely, 2^18151286472 is an apocalyptic number.

18151286472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18151286472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27056688750).

18151286472 is an abundant number, since it is smaller than the sum of its proper divisors (35962091028).

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

18151286472 is a wasteful number, since it uses less digits than its factorization.

18151286472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052 (or 3034 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The spelling of 18151286472 in words is "eighteen billion, one hundred fifty-one million, two hundred eighty-six thousand, four hundred seventy-two".