1993711830030 has 32 divisors (see below), whose sum is σ = 5316564880800. Its totient is φ = 531656487936.

The previous prime is 1993711830023. The next prime is 1993711830031. The reversal of 1993711830030 is 300381173991.

It is a super-2 number, since 2×1993711830030² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993711830031) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3692058675 + ... + 3692059214.

It is an arithmetic number, because the mean of its divisors is an integer number (166142652525).

Almost surely, 2^{1993711830030} is an apocalyptic number.

1993711830030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1993711830030 is an abundant number, since it is smaller than the sum of its proper divisors (3322853050770).

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

1993711830030 is a wasteful number, since it uses less digits than its factorization.

1993711830030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7384117905 (or 7384117899 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 1993711830030 in words is "one trillion, nine hundred ninety-three billion, seven hundred eleven million, eight hundred thirty thousand, thirty".