19928106711 has 6 divisors (see below), whose sum is σ = 28785043040. Its totient is φ = 13285404468.

The previous prime is 19928106701. The next prime is 19928106713. The reversal of 19928106711 is 11760182991.

It is a happy number.

It is not a de Polignac number, because 19928106711 - 2⁹ = 19928106199 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 (19928106713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1107117031 + ... + 1107117048.

Almost surely, 2^19928106711 is an apocalyptic number.

19928106711 is a deficient number, since it is larger than the sum of its proper divisors (8856936329).

19928106711 is a wasteful number, since it uses less digits than its factorization.

19928106711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214234085 (or 2214234082 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 45.

The spelling of 19928106711 in words is "nineteen billion, nine hundred twenty-eight million, one hundred six thousand, seven hundred eleven".