11993455219 has 8 divisors (see below), whose sum is σ = 12051970560. Its totient is φ = 11935009800.

The previous prime is 11993455213. The next prime is 11993455223. The reversal of 11993455219 is 91255439911.

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 11993455219 - 2¹⁵ = 11993422451 is a prime.

It is a super-2 number, since 2×11993455219² (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 (11993455213) 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, 344524 + ... + 377734.

It is an arithmetic number, because the mean of its divisors is an integer number (1506496320).

Almost surely, 2^11993455219 is an apocalyptic number.

11993455219 is a deficient number, since it is larger than the sum of its proper divisors (58515341).

11993455219 is a wasteful number, since it uses less digits than its factorization.

11993455219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34961.

The product of its digits is 437400, while the sum is 49.

The spelling of 11993455219 in words is "eleven billion, nine hundred ninety-three million, four hundred fifty-five thousand, two hundred nineteen".