18782877243002 has 4 divisors (see below), whose sum is σ = 28174315864506. Its totient is φ = 9391438621500.

The previous prime is 18782877242999. The next prime is 18782877243007. The reversal of 18782877243002 is 20034277828781.

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., 11806364009521 + 6976513233481 = 3436039^2 + 2641309^2 .

It is not an unprimeable number, because it can be changed into a prime (18782877243007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4695719310749 + ... + 4695719310752.

Almost surely, 2^{18782877243002} is an apocalyptic number.

18782877243002 is a deficient number, since it is larger than the sum of its proper divisors (9391438621504).

18782877243002 is an equidigital number, since it uses as much as digits as its factorization.

18782877243002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9391438621503.

The product of its (nonzero) digits is 16859136, while the sum is 59.

The spelling of 18782877243002 in words is "eighteen trillion, seven hundred eighty-two billion, eight hundred seventy-seven million, two hundred forty-three thousand, two".