19106772769 has 8 divisors (see below), whose sum is σ = 21980924288. Its totient is φ = 16268774400.

The previous prime is 19106772767. The next prime is 19106772793. The reversal of 19106772769 is 96727760191.

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 19106772769 - 2¹ = 19106772767 is a prime.

It is a super-2 number, since 2×19106772769² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19106772767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9037152 + ... + 9039265.

It is an arithmetic number, because the mean of its divisors is an integer number (2747615536).

Almost surely, 2^19106772769 is an apocalyptic number.

It is an amenable number.

19106772769 is a deficient number, since it is larger than the sum of its proper divisors (2874151519).

19106772769 is a wasteful number, since it uses less digits than its factorization.

19106772769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18076575.

The product of its (nonzero) digits is 2000376, while the sum is 55.

The spelling of 19106772769 in words is "nineteen billion, one hundred six million, seven hundred seventy-two thousand, seven hundred sixty-nine".