19040484079 has 4 divisors (see below), whose sum is σ = 20042614840. Its totient is φ = 18038353320.

The previous prime is 19040484037. The next prime is 19040484097. The reversal of 19040484079 is 97048404091.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19040484079 - 2¹³ = 19040475887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19040484019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501065352 + ... + 501065389.

It is an arithmetic number, because the mean of its divisors is an integer number (5010653710).

Almost surely, 2^19040484079 is an apocalyptic number.

19040484079 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

19040484079 is a deficient number, since it is larger than the sum of its proper divisors (1002130761).

19040484079 is a wasteful number, since it uses less digits than its factorization.

19040484079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002130760.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 19040484079 in words is "nineteen billion, forty million, four hundred eighty-four thousand, seventy-nine".