18130750490 has 8 divisors (see below), whose sum is σ = 32635350900. Its totient is φ = 7252300192.

The previous prime is 18130750487. The next prime is 18130750531. The reversal of 18130750490 is 9405703181.

It can be written as a sum of positive squares in 2 ways, for example, as 17563405729 + 567344761 = 132527^2 + 23819^2 .

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

It is a super-2 number, since 2×18130750490² (a number of 21 digits) contains 22 as substring.

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, 906537515 + ... + 906537534.

Almost surely, 2^18130750490 is an apocalyptic number.

18130750490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18130750490 is a deficient number, since it is larger than the sum of its proper divisors (14504600410).

18130750490 is a wasteful number, since it uses less digits than its factorization.

18130750490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813075056.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 18130750490 in words is "eighteen billion, one hundred thirty million, seven hundred fifty thousand, four hundred ninety".