18006860723002 has 32 divisors (see below), whose sum is σ = 27849514981248. Its totient is φ = 8728039320000.

The previous prime is 18006860722969. The next prime is 18006860723053. The reversal of 18006860723002 is 20032706860081.

It is a super-2 number, since 2×18006860723002² (a number of 27 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 18006860723002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24418677 + ... + 25145287.

It is an arithmetic number, because the mean of its divisors is an integer number (870297343164).

Almost surely, 2^{18006860723002} is an apocalyptic number.

18006860723002 is a deficient number, since it is larger than the sum of its proper divisors (9842654258246).

18006860723002 is a wasteful number, since it uses less digits than its factorization.

18006860723002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729606.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 18006860723002 in words is "eighteen trillion, six billion, eight hundred sixty million, seven hundred twenty-three thousand, two".