11479717921 has 8 divisors (see below), whose sum is σ = 13120430400. Its totient is φ = 9839193648.

The previous prime is 11479717919. The next prime is 11479717943. The reversal of 11479717921 is 12971797411.

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 11479717921 - 2¹ = 11479717919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11479717021) 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, 126195 + ... + 197191.

It is an arithmetic number, because the mean of its divisors is an integer number (1640053800).

Almost surely, 2^11479717921 is an apocalyptic number.

It is an amenable number.

11479717921 is a deficient number, since it is larger than the sum of its proper divisors (1640712479).

11479717921 is an equidigital number, since it uses as much as digits as its factorization.

11479717921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94103.

The product of its digits is 222264, while the sum is 49.

The spelling of 11479717921 in words is "eleven billion, four hundred seventy-nine million, seven hundred seventeen thousand, nine hundred twenty-one".