18250985770 has 8 divisors (see below), whose sum is σ = 32851774404. Its totient is φ = 7300394304.

The previous prime is 18250985761. The next prime is 18250985807. The reversal of 18250985770 is 7758905281.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18233370961 + 17614809 = 135031^2 + 4197^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912549279 + ... + 912549298.

Almost surely, 2^18250985770 is an apocalyptic number.

18250985770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18250985770 is a deficient number, since it is larger than the sum of its proper divisors (14600788634).

18250985770 is a wasteful number, since it uses less digits than its factorization.

18250985770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825098584.

The product of its (nonzero) digits is 1411200, while the sum is 52.

The spelling of 18250985770 in words is "eighteen billion, two hundred fifty million, nine hundred eighty-five thousand, seven hundred seventy".