11279684465 has 8 divisors (see below), whose sum is σ = 15469281600. Its totient is φ = 7734640752.

The previous prime is 11279684461. The next prime is 11279684491. The reversal of 11279684465 is 56448697211.

It is a happy number.

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 11279684465 - 2² = 11279684461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11279684461) 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, 161138315 + ... + 161138384.

It is an arithmetic number, because the mean of its divisors is an integer number (1933660200).

Almost surely, 2^11279684465 is an apocalyptic number.

It is an amenable number.

11279684465 is a deficient number, since it is larger than the sum of its proper divisors (4189597135).

11279684465 is an equidigital number, since it uses as much as digits as its factorization.

11279684465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322276711.

The product of its digits is 2903040, while the sum is 53.

The spelling of 11279684465 in words is "eleven billion, two hundred seventy-nine million, six hundred eighty-four thousand, four hundred sixty-five".