19914432073 has 8 divisors (see below), whose sum is σ = 20271116160. Its totient is φ = 19558386480.

The previous prime is 19914432071. The next prime is 19914432091. The reversal of 19914432073 is 37023441991.

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

It is a cyclic number.

It is not a de Polignac number, because 19914432073 - 2¹ = 19914432071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19914432071) 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, 96465 + ... + 221662.

It is an arithmetic number, because the mean of its divisors is an integer number (2533889520).

Almost surely, 2^19914432073 is an apocalyptic number.

It is an amenable number.

19914432073 is a deficient number, since it is larger than the sum of its proper divisors (356684087).

19914432073 is a wasteful number, since it uses less digits than its factorization.

19914432073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319247.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 19914432073 in words is "nineteen billion, nine hundred fourteen million, four hundred thirty-two thousand, seventy-three".