19580049997 has 8 divisors (see below), whose sum is σ = 19666061312. Its totient is φ = 19494140400.

The previous prime is 19580049971. The next prime is 19580050013. The reversal of 19580049997 is 79994008591.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19580049997 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 (19580041997) 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, 374083 + ... + 423199.

It is an arithmetic number, because the mean of its divisors is an integer number (2458257664).

Almost surely, 2^19580049997 is an apocalyptic number.

It is an amenable number.

19580049997 is a deficient number, since it is larger than the sum of its proper divisors (86011315).

19580049997 is a wasteful number, since it uses less digits than its factorization.

19580049997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50859.

The product of its (nonzero) digits is 7348320, while the sum is 61.

The spelling of 19580049997 in words is "nineteen billion, five hundred eighty million, forty-nine thousand, nine hundred ninety-seven".