11478667733999 has 4 divisors (see below), whose sum is σ = 11542085787960. Its totient is φ = 11415249680040.

The previous prime is 11478667733983. The next prime is 11478667734029. The reversal of 11478667733999 is 99933776687411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11478667733999 - 2⁴ = 11478667733983 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 (11478667733959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31709026709 + ... + 31709027070.

It is an arithmetic number, because the mean of its divisors is an integer number (2885521446990).

Almost surely, 2^{11478667733999} is an apocalyptic number.

11478667733999 is a deficient number, since it is larger than the sum of its proper divisors (63418053961).

11478667733999 is an equidigital number, since it uses as much as digits as its factorization.

11478667733999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63418053960.

The product of its digits is 2592487296, while the sum is 80.

The spelling of 11478667733999 in words is "eleven trillion, four hundred seventy-eight billion, six hundred sixty-seven million, seven hundred thirty-three thousand, nine hundred ninety-nine".