19139321607 has 8 divisors (see below), whose sum is σ = 29164680576. Its totient is φ = 10936755192.

The previous prime is 19139321519. The next prime is 19139321609. The reversal of 19139321607 is 70612393191.

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

It is not a de Polignac number, because 19139321607 - 2¹⁰ = 19139320583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19139321609) 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, 455698113 + ... + 455698154.

It is an arithmetic number, because the mean of its divisors is an integer number (3645585072).

Almost surely, 2^19139321607 is an apocalyptic number.

19139321607 is a deficient number, since it is larger than the sum of its proper divisors (10025358969).

19139321607 is an equidigital number, since it uses as much as digits as its factorization.

19139321607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911396277.

The product of its (nonzero) digits is 61236, while the sum is 42.

The spelling of 19139321607 in words is "nineteen billion, one hundred thirty-nine million, three hundred twenty-one thousand, six hundred seven".