1850358957841 has 3 divisors (see below), whose sum is σ = 1850360318121. Its totient is φ = 1850357597562.

The previous prime is 1850358957803. The next prime is 1850358957929. The reversal of 1850358957841 is 1487598530581.

The square root of 1850358957841 is 1360279.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1850358957841 - 2⁹ = 1850358957329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1850358957541) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 680140 + ... + 2040418.

It is an arithmetic number, because the mean of its divisors is an integer number (616786772707).

Almost surely, 2^{1850358957841} is an apocalyptic number.

1850358957841 is the 1360279-th square number.

1850358957841 is the 680140-th centered octagonal number.

It is an amenable number.

1850358957841 is a deficient number, since it is larger than the sum of its proper divisors (1360280).

1850358957841 is an frugal number, since it uses more digits than its factorization.

1850358957841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720558 (or 1360279 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 64.

Multiplying 1850358957841 by its sum of digits (64), we get a square (118422973301824 = 10882232²).

The spelling of 1850358957841 in words is "one trillion, eight hundred fifty billion, three hundred fifty-eight million, nine hundred fifty-seven thousand, eight hundred forty-one".