19720352841 has 32 divisors (see below), whose sum is σ = 30419020800. Its totient is φ = 11131027776.

The previous prime is 19720352831. The next prime is 19720352887. The reversal of 19720352841 is 14825302791.

It is not a de Polignac number, because 19720352841 - 2⁵ = 19720352809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19720352793 and 19720352802.

It is not an unprimeable number, because it can be changed into a prime (19720352831) 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 31 ways as a sum of consecutive naturals, for example, 771630 + ... + 796776.

It is an arithmetic number, because the mean of its divisors is an integer number (950594400).

Almost surely, 2^19720352841 is an apocalyptic number.

It is an amenable number.

19720352841 is a deficient number, since it is larger than the sum of its proper divisors (10698667959).

19720352841 is a wasteful number, since it uses less digits than its factorization.

19720352841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25613.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 19720352841 in words is "nineteen billion, seven hundred twenty million, three hundred fifty-two thousand, eight hundred forty-one".