1818001871242 has 16 divisors (see below), whose sum is σ = 2868851584800. Its totient is φ = 862780547440.

The previous prime is 1818001871123. The next prime is 1818001871261. The reversal of 1818001871242 is 2421781008181.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265630984 + ... + 265637827.

It is an arithmetic number, because the mean of its divisors is an integer number (179303224050).

Almost surely, 2^{1818001871242} is an apocalyptic number.

1818001871242 is a deficient number, since it is larger than the sum of its proper divisors (1050849713558).

1818001871242 is a wasteful number, since it uses less digits than its factorization.

1818001871242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531268901.

The product of its (nonzero) digits is 57344, while the sum is 43.

The spelling of 1818001871242 in words is "one trillion, eight hundred eighteen billion, one million, eight hundred seventy-one thousand, two hundred forty-two".