19769555233 has 8 divisors (see below), whose sum is σ = 20813630400. Its totient is φ = 18725837328.

The previous prime is 19769555231. The next prime is 19769555249. The reversal of 19769555233 is 33255596791.

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 19769555233 - 2¹ = 19769555231 is a prime.

It is a super-2 number, since 2×19769555233² (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 (19769555231) 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, 28260 + ... + 200842.

It is an arithmetic number, because the mean of its divisors is an integer number (2601703800).

Almost surely, 2^19769555233 is an apocalyptic number.

It is an amenable number.

19769555233 is a deficient number, since it is larger than the sum of its proper divisors (1044075167).

19769555233 is a wasteful number, since it uses less digits than its factorization.

19769555233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178631.

The product of its digits is 7654500, while the sum is 55.

The spelling of 19769555233 in words is "nineteen billion, seven hundred sixty-nine million, five hundred fifty-five thousand, two hundred thirty-three".