18150686626 has 12 divisors (see below), whose sum is σ = 27981760338. Its totient is φ = 8830062432.

The previous prime is 18150686621. The next prime is 18150686641. The reversal of 18150686626 is 62668605181.

It can be written as a sum of positive squares in 3 ways, for example, as 18009908401 + 140778225 = 134201^2 + 11865^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18150686626.

It is not an unprimeable number, because it can be changed into a prime (18150686621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3311851 + ... + 3317326.

Almost surely, 2^18150686626 is an apocalyptic number.

18150686626 is a deficient number, since it is larger than the sum of its proper divisors (9831073712).

18150686626 is an equidigital number, since it uses as much as digits as its factorization.

18150686626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6629253 (or 6629216 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 18150686626 in words is "eighteen billion, one hundred fifty million, six hundred eighty-six thousand, six hundred twenty-six".