1845859419202 has 4 divisors (see below), whose sum is σ = 2768789128806. Its totient is φ = 922929709600.

The previous prime is 1845859419197. The next prime is 1845859419203. The reversal of 1845859419202 is 2029149585481.

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., 1796455021761 + 49404397441 = 1340319^2 + 222271^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1845859419203) by changing a digit.

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 as a sum of consecutive naturals, namely, 461464854799 + ... + 461464854802.

Almost surely, 2^{1845859419202} is an apocalyptic number.

1845859419202 is a deficient number, since it is larger than the sum of its proper divisors (922929709604).

1845859419202 is an equidigital number, since it uses as much as digits as its factorization.

1845859419202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922929709603.

The product of its (nonzero) digits is 8294400, while the sum is 58.

The spelling of 1845859419202 in words is "one trillion, eight hundred forty-five billion, eight hundred fifty-nine million, four hundred nineteen thousand, two hundred two".