11729463391 has 4 divisors (see below), whose sum is σ = 11850385792. Its totient is φ = 11608540992.

The previous prime is 11729463379. The next prime is 11729463437. The reversal of 11729463391 is 19336492711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19336492711 = 43 ⋅449685877.

It is a cyclic number.

It is not a de Polignac number, because 11729463391 - 2⁵ = 11729463359 is a prime.

It is a super-2 number, since 2×11729463391² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11729463791) 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, 60461055 + ... + 60461248.

It is an arithmetic number, because the mean of its divisors is an integer number (2962596448).

Almost surely, 2^11729463391 is an apocalyptic number.

11729463391 is a deficient number, since it is larger than the sum of its proper divisors (120922401).

11729463391 is an equidigital number, since it uses as much as digits as its factorization.

11729463391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120922400.

The product of its digits is 244944, while the sum is 46.

The spelling of 11729463391 in words is "eleven billion, seven hundred twenty-nine million, four hundred sixty-three thousand, three hundred ninety-one".