1818190910002 has 4 divisors (see below), whose sum is σ = 2727286365006. Its totient is φ = 909095455000.

The previous prime is 1818190909981. The next prime is 1818190910009. The reversal of 1818190910002 is 2000190918181.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1348062645721 + 470128264281 = 1161061^2 + 685659^2 .

It is not an unprimeable number, because it can be changed into a prime (1818190910009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454547727499 + ... + 454547727502.

Almost surely, 2^{1818190910002} is an apocalyptic number.

1818190910002 is a deficient number, since it is larger than the sum of its proper divisors (909095455004).

1818190910002 is an equidigital number, since it uses as much as digits as its factorization.

1818190910002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909095455003.

The product of its (nonzero) digits is 10368, while the sum is 40.

The spelling of 1818190910002 in words is "one trillion, eight hundred eighteen billion, one hundred ninety million, nine hundred ten thousand, two".