11723499465 has 16 divisors (see below), whose sum is σ = 18784374336. Its totient is φ = 6243608000.

The previous prime is 11723499409. The next prime is 11723499467. The reversal of 11723499465 is 56499432711.

It is a happy number.

It is not a de Polignac number, because 11723499465 - 2¹⁶ = 11723433929 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11723499467) 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 15 ways as a sum of consecutive naturals, for example, 546951 + ... + 567980.

It is an arithmetic number, because the mean of its divisors is an integer number (1174023396).

Almost surely, 2^11723499465 is an apocalyptic number.

11723499465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11723499465 is a deficient number, since it is larger than the sum of its proper divisors (7060874871).

11723499465 is a wasteful number, since it uses less digits than its factorization.

11723499465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115640.

The product of its digits is 1632960, while the sum is 51.

The spelling of 11723499465 in words is "eleven billion, seven hundred twenty-three million, four hundred ninety-nine thousand, four hundred sixty-five".