1853513591428 has 6 divisors (see below), whose sum is σ = 3243648785006. Its totient is φ = 926756795712.

The previous prime is 1853513591393. The next prime is 1853513591467. The reversal of 1853513591428 is 8241953153581.

It can be written as a sum of positive squares in only one way, i.e., 1364859465984 + 488654125444 = 1168272^2 + 699038^2 .

It is an unprimeable number.

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, 231689198925 + ... + 231689198932.

Almost surely, 2^{1853513591428} is an apocalyptic number.

It is an amenable number.

1853513591428 is a deficient number, since it is larger than the sum of its proper divisors (1390135193578).

1853513591428 is a wasteful number, since it uses less digits than its factorization.

1853513591428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463378397861 (or 463378397859 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 55.

The spelling of 1853513591428 in words is "one trillion, eight hundred fifty-three billion, five hundred thirteen million, five hundred ninety-one thousand, four hundred twenty-eight".