1833742281640 has 32 divisors (see below), whose sum is σ = 4129223625000. Its totient is φ = 732909625344.

The previous prime is 1833742281617. The next prime is 1833742281643. The reversal of 1833742281640 is 461822473381.

It can be written as a sum of positive squares in 4 ways, for example, as 1194155015076 + 639587266564 = 1092774^2 + 799742^2 .

It is a super-2 number, since 2×1833742281640² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1833742281643) by changing a digit.

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, 18302145 + ... + 18402064.

Almost surely, 2^{1833742281640} is an apocalyptic number.

1833742281640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1833742281640 is an abundant number, since it is smaller than the sum of its proper divisors (2295481343360).

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

1833742281640 is a wasteful number, since it uses less digits than its factorization.

1833742281640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36705469 (or 36705465 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 1833742281640 in words is "one trillion, eight hundred thirty-three billion, seven hundred forty-two million, two hundred eighty-one thousand, six hundred forty".