19964171411 has 8 divisors (see below), whose sum is σ = 20057194080. Its totient is φ = 19871278912.

The previous prime is 19964171407. The next prime is 19964171429. The reversal of 19964171411 is 11417146991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19964171411 - 2² = 19964171407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19964171401) 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 7 ways as a sum of consecutive naturals, for example, 281945 + ... + 345573.

It is an arithmetic number, because the mean of its divisors is an integer number (2507149260).

Almost surely, 2^19964171411 is an apocalyptic number.

19964171411 is a deficient number, since it is larger than the sum of its proper divisors (93022669).

19964171411 is a wasteful number, since it uses less digits than its factorization.

19964171411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65085.

The product of its digits is 54432, while the sum is 44.

The spelling of 19964171411 in words is "nineteen billion, nine hundred sixty-four million, one hundred seventy-one thousand, four hundred eleven".