1898073822436 has 45 divisors (see below), whose sum is σ = 3654411334105. Its totient is φ = 862609280720.

The previous prime is 1898073822371. The next prime is 1898073822439. The reversal of 1898073822436 is 6342283708981.

The square root of 1898073822436 is 1377706.

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., 233086184100 + 1664987638336 = 482790^2 + 1290344^2 .

It is a super-3 number, since 3×1898073822436³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1898073822439) 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 in 14 ways as a sum of consecutive naturals, for example, 333402006 + ... + 333407698.

Almost surely, 2^{1898073822436} is an apocalyptic number.

1898073822436 is the 1377706-th square number.

It is an amenable number.

1898073822436 is a deficient number, since it is larger than the sum of its proper divisors (1756337511669).

1898073822436 is an frugal number, since it uses more digits than its factorization.

1898073822436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11434 (or 5706 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 1898073822436 in words is "one trillion, eight hundred ninety-eight billion, seventy-three million, eight hundred twenty-two thousand, four hundred thirty-six".