1833385352172 has 24 divisors (see below), whose sum is σ = 4666799078592. Its totient is φ = 555571318800.

The previous prime is 1833385352147. The next prime is 1833385352207. The reversal of 1833385352172 is 2712535833381.

It is a super-2 number, since 2×1833385352172² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6944641354 + ... + 6944641617.

It is an arithmetic number, because the mean of its divisors is an integer number (194449961608).

Almost surely, 2^{1833385352172} is an apocalyptic number.

1833385352172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1833385352172 is an abundant number, since it is smaller than the sum of its proper divisors (2833413726420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1833385352172 is a wasteful number, since it uses less digits than its factorization.

1833385352172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13889282989 (or 13889282987 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 51.

The spelling of 1833385352172 in words is "one trillion, eight hundred thirty-three billion, three hundred eighty-five million, three hundred fifty-two thousand, one hundred seventy-two".