18280152831 has 8 divisors (see below), whose sum is σ = 24519487104. Its totient is φ = 12113793560.

The previous prime is 18280152829. The next prime is 18280152889. The reversal of 18280152831 is 13825108281.

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

It is a cyclic number.

It is not a de Polignac number, because 18280152831 - 2¹ = 18280152829 is a prime.

It is a super-2 number, since 2×18280152831² (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 18280152831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18280152731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18243165 + ... + 18244166.

It is an arithmetic number, because the mean of its divisors is an integer number (3064935888).

Almost surely, 2^18280152831 is an apocalyptic number.

18280152831 is a deficient number, since it is larger than the sum of its proper divisors (6239334273).

18280152831 is a wasteful number, since it uses less digits than its factorization.

18280152831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36487501.

The product of its (nonzero) digits is 30720, while the sum is 39.

The spelling of 18280152831 in words is "eighteen billion, two hundred eighty million, one hundred fifty-two thousand, eight hundred thirty-one".