18145708782 has 16 divisors (see below), whose sum is σ = 36292979712. Its totient is φ = 6048309240.

The previous prime is 18145708771. The next prime is 18145708793. The reversal of 18145708782 is 28780754181.

It is an interprime number because it is at equal distance from previous prime (18145708771) and next prime (18145708793).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 131673 + ... + 231579.

It is an arithmetic number, because the mean of its divisors is an integer number (2268311232).

Almost surely, 2^18145708782 is an apocalyptic number.

18145708782 is an abundant number, since it is smaller than the sum of its proper divisors (18147270930).

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

18145708782 is a wasteful number, since it uses less digits than its factorization.

18145708782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130183.

The product of its (nonzero) digits is 1003520, while the sum is 51.

The spelling of 18145708782 in words is "eighteen billion, one hundred forty-five million, seven hundred eight thousand, seven hundred eighty-two".