1818200402002 has 8 divisors (see below), whose sum is σ = 2730120978816. Its totient is φ = 908160075732.

The previous prime is 1818200401973. The next prime is 1818200402003. The reversal of 1818200402002 is 2002040028181.

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

It is not an unprimeable number, because it can be changed into a prime (1818200402003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470060218 + ... + 470064085.

It is an arithmetic number, because the mean of its divisors is an integer number (341265122352).

Almost surely, 2^{1818200402002} is an apocalyptic number.

1818200402002 is a deficient number, since it is larger than the sum of its proper divisors (911920576814).

1818200402002 is an equidigital number, since it uses as much as digits as its factorization.

1818200402002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940125272.

The product of its (nonzero) digits is 2048, while the sum is 28.

The spelling of 1818200402002 in words is "one trillion, eight hundred eighteen billion, two hundred million, four hundred two thousand, two".