19692079441 has 4 divisors (see below), whose sum is σ = 20548256832. Its totient is φ = 18835902052.

The previous prime is 19692079399. The next prime is 19692079453. The reversal of 19692079441 is 14497029691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14497029691 = 5857 ⋅2475163.

It is a cyclic number.

It is not a de Polignac number, because 19692079441 - 2¹³ = 19692071249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19692079471) 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 3 ways as a sum of consecutive naturals, for example, 428088661 + ... + 428088706.

It is an arithmetic number, because the mean of its divisors is an integer number (5137064208).

Almost surely, 2^19692079441 is an apocalyptic number.

It is an amenable number.

19692079441 is a deficient number, since it is larger than the sum of its proper divisors (856177391).

19692079441 is an equidigital number, since it uses as much as digits as its factorization.

19692079441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856177390.

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 19692079441 in words is "nineteen billion, six hundred ninety-two million, seventy-nine thousand, four hundred forty-one".