11964771217 has 8 divisors (see below), whose sum is σ = 13722688512. Its totient is φ = 10219020000.

The previous prime is 11964771211. The next prime is 11964771227. The reversal of 11964771217 is 71217746911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11964771217 - 2³ = 11964771209 is a prime.

It is a super-2 number, since 2×11964771217² (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 (11964771211) 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, 3039409 + ... + 3043342.

It is an arithmetic number, because the mean of its divisors is an integer number (1715336064).

Almost surely, 2^11964771217 is an apocalyptic number.

It is an amenable number.

11964771217 is a deficient number, since it is larger than the sum of its proper divisors (1757917295).

11964771217 is an equidigital number, since it uses as much as digits as its factorization.

11964771217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6083039.

The product of its digits is 148176, while the sum is 46.

The spelling of 11964771217 in words is "eleven billion, nine hundred sixty-four million, seven hundred seventy-one thousand, two hundred seventeen".