1973353005500 has 96 divisors (see below), whose sum is σ = 4537265328960. Its totient is φ = 747692985600.

The previous prime is 1973353005497. The next prime is 1973353005509. The reversal of 1973353005500 is 55003533791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973353005509) 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 31 ways as a sum of consecutive naturals, for example, 129163862 + ... + 129179138.

It is an arithmetic number, because the mean of its divisors is an integer number (47263180510).

Almost surely, 2^{1973353005500} is an apocalyptic number.

1973353005500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1973353005500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2268632664480).

1973353005500 is an abundant number, since it is smaller than the sum of its proper divisors (2563912323460).

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

1973353005500 is a wasteful number, since it uses less digits than its factorization.

1973353005500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28912 (or 28900 counting only the distinct ones).

The product of its (nonzero) digits is 212625, while the sum is 41.

The spelling of 1973353005500 in words is "one trillion, nine hundred seventy-three billion, three hundred fifty-three million, five thousand, five hundred".