11465172979 has 8 divisors (see below), whose sum is σ = 12349056272. Its totient is φ = 10581567840.

The previous prime is 11465172949. The next prime is 11465173003. The reversal of 11465172979 is 97927156411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11465172979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11465172949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20392 + ... + 152794.

It is an arithmetic number, because the mean of its divisors is an integer number (1543632034).

Almost surely, 2^11465172979 is an apocalyptic number.

11465172979 is a deficient number, since it is larger than the sum of its proper divisors (883883293).

11465172979 is a wasteful number, since it uses less digits than its factorization.

11465172979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139077.

The product of its digits is 952560, while the sum is 52.

The spelling of 11465172979 in words is "eleven billion, four hundred sixty-five million, one hundred seventy-two thousand, nine hundred seventy-nine".