193713997720 has 16 divisors (see below), whose sum is σ = 435856494960. Its totient is φ = 77485599072.

The previous prime is 193713997709. The next prime is 193713997733. The reversal of 193713997720 is 27799317391.

It is a super-2 number, since 2×193713997720² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2421424932 + ... + 2421425011.

It is an arithmetic number, because the mean of its divisors is an integer number (27241030935).

Almost surely, 2^193713997720 is an apocalyptic number.

193713997720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

193713997720 is an abundant number, since it is smaller than the sum of its proper divisors (242142497240).

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

193713997720 is a wasteful number, since it uses less digits than its factorization.

193713997720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4842849954 (or 4842849950 counting only the distinct ones).

The product of its (nonzero) digits is 4500846, while the sum is 58.

The spelling of 193713997720 in words is "one hundred ninety-three billion, seven hundred thirteen million, nine hundred ninety-seven thousand, seven hundred twenty".