1850573888164 has 27 divisors (see below), whose sum is σ = 3385545256513. Its totient is φ = 885027149072.

The previous prime is 1850573888161. The next prime is 1850573888183. The reversal of 1850573888164 is 4618883750581.

The square root of 1850573888164 is 1360358.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 244757772900 + 1605816115264 = 494730^2 + 1267208^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1850573888096 and 1850573888105.

It is not an unprimeable number, because it can be changed into a prime (1850573888161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 62561682 + ... + 62591254.

Almost surely, 2^{1850573888164} is an apocalyptic number.

1850573888164 is the 1360358-th square number.

It is an amenable number.

1850573888164 is a deficient number, since it is larger than the sum of its proper divisors (1534971368349).

1850573888164 is an frugal number, since it uses more digits than its factorization.

1850573888164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59196 (or 29598 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 64.

Multiplying 1850573888164 by its sum of digits (64), we get a square (118436728842496 = 10882864²).

The spelling of 1850573888164 in words is "one trillion, eight hundred fifty billion, five hundred seventy-three million, eight hundred eighty-eight thousand, one hundred sixty-four".