1825554841972 has 12 divisors (see below), whose sum is σ = 3362864182720. Its totient is φ = 864736504056.

The previous prime is 1825554841949. The next prime is 1825554841987. The reversal of 1825554841972 is 2791484555281.

It is a self number, because there is not a number n which added to its sum of digits gives 1825554841972.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12010229148 + ... + 12010229299.

Almost surely, 2^{1825554841972} is an apocalyptic number.

It is an amenable number.

1825554841972 is a deficient number, since it is larger than the sum of its proper divisors (1537309340748).

1825554841972 is a wasteful number, since it uses less digits than its factorization.

1825554841972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24020458470 (or 24020458468 counting only the distinct ones).

The product of its digits is 32256000, while the sum is 61.

The spelling of 1825554841972 in words is "one trillion, eight hundred twenty-five billion, five hundred fifty-four million, eight hundred forty-one thousand, nine hundred seventy-two".