19741439669 has 8 divisors (see below), whose sum is σ = 23888801088. Its totient is φ = 15925867200.

The previous prime is 19741439659. The next prime is 19741439677. The reversal of 19741439669 is 96693414791.

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 19741439669 - 2¹² = 19741435573 is a prime.

It is a super-2 number, since 2×19741439669² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19741439609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82947107 + ... + 82947344.

It is an arithmetic number, because the mean of its divisors is an integer number (2986100136).

Almost surely, 2^19741439669 is an apocalyptic number.

It is an amenable number.

19741439669 is a deficient number, since it is larger than the sum of its proper divisors (4147361419).

19741439669 is a wasteful number, since it uses less digits than its factorization.

19741439669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165894475.

The product of its digits is 8817984, while the sum is 59.

The spelling of 19741439669 in words is "nineteen billion, seven hundred forty-one million, four hundred thirty-nine thousand, six hundred sixty-nine".