18045712339432 has 32 divisors (see below), whose sum is σ = 35467041012480. Its totient is φ = 8598070535040.

The previous prime is 18045712339411. The next prime is 18045712339451. The reversal of 18045712339432 is 23493321754081.

It is a self number, because there is not a number n which added to its sum of digits gives 18045712339432.

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, 639723288 + ... + 639751495.

It is an arithmetic number, because the mean of its divisors is an integer number (1108345031640).

Almost surely, 2^{18045712339432} is an apocalyptic number.

It is an amenable number.

18045712339432 is a deficient number, since it is larger than the sum of its proper divisors (17421328673048).

18045712339432 is a wasteful number, since it uses less digits than its factorization.

18045712339432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279474873 (or 1279474869 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 18045712339432 in words is "eighteen trillion, forty-five billion, seven hundred twelve million, three hundred thirty-nine thousand, four hundred thirty-two".