19381950007 has 8 divisors (see below), whose sum is σ = 22191299456. Its totient is φ = 16582725432.

The previous prime is 19381949959. The next prime is 19381950031. The reversal of 19381950007 is 70005918391.

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

It is a de Polignac number, because none of the positive numbers 2^k-19381950007 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 (19381950067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2527113 + ... + 2534770.

It is an arithmetic number, because the mean of its divisors is an integer number (2773912432).

Almost surely, 2^19381950007 is an apocalyptic number.

19381950007 is a deficient number, since it is larger than the sum of its proper divisors (2809349449).

19381950007 is an equidigital number, since it uses as much as digits as its factorization.

19381950007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5062437.

The product of its (nonzero) digits is 68040, while the sum is 43.

The spelling of 19381950007 in words is "nineteen billion, three hundred eighty-one million, nine hundred fifty thousand, seven".