1873051818 has 16 divisors (see below), whose sum is σ = 4086658656. Its totient is φ = 567591440.

The previous prime is 1873051813. The next prime is 1873051847. The reversal of 1873051818 is 8181503781.

It is a super-2 number, since 2×1873051818² = 7016646225826210248, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1873051818.

It is not an unprimeable number, because it can be changed into a prime (1873051813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14189721 + ... + 14189852.

It is an arithmetic number, because the mean of its divisors is an integer number (255416166).

Almost surely, 2^1873051818 is an apocalyptic number.

1873051818 is an abundant number, since it is smaller than the sum of its proper divisors (2213606838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1873051818 is a wasteful number, since it uses less digits than its factorization.

1873051818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28379589.

The product of its (nonzero) digits is 53760, while the sum is 42.

The square root of 1873051818 is about 43278.7686747209. The cubic root of 1873051818 is about 1232.6788109444.

The spelling of 1873051818 in words is "one billion, eight hundred seventy-three million, fifty-one thousand, eight hundred eighteen".