19943540332070 has 16 divisors (see below), whose sum is σ = 35898541763760. Its totient is φ = 7977378540384.

The previous prime is 19943540332069. The next prime is 19943540332081. The reversal of 19943540332070 is 7023304534991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2418152 + ... + 6762731.

It is an arithmetic number, because the mean of its divisors is an integer number (2243658860235).

Almost surely, 2^{19943540332070} is an apocalyptic number.

19943540332070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19943540332070 is a deficient number, since it is larger than the sum of its proper divisors (15955001431690).

19943540332070 is a wasteful number, since it uses less digits than its factorization.

19943540332070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9398119.

The product of its (nonzero) digits is 2449440, while the sum is 50.

The spelling of 19943540332070 in words is "nineteen trillion, nine hundred forty-three billion, five hundred forty million, three hundred thirty-two thousand, seventy".