19796715422500 has 405 divisors, whose sum is σ = 46766031813039. Its totient is φ = 7329681216000.

The previous prime is 19796715422489. The next prime is 19796715422509. The reversal of 19796715422500 is 522451769791.

The square root of 19796715422500 is 4449350.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 22 ways, for example, as 19793440836324 + 3274586176 = 4448982^2 + 57224^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19796715422509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 271187882464 + ... + 271187882536.

Almost surely, 2^{19796715422500} is an apocalyptic number.

19796715422500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19796715422500 is the 4449350-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19796715422500

19796715422500 is an abundant number, since it is smaller than the sum of its proper divisors (26969316390539).

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

19796715422500 is an frugal number, since it uses more digits than its factorization.

19796715422500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 58.

The spelling of 19796715422500 in words is "nineteen trillion, seven hundred ninety-six billion, seven hundred fifteen million, four hundred twenty-two thousand, five hundred".