11721467415 has 32 divisors (see below), whose sum is σ = 21495375360. Its totient is φ = 5342926464.

The previous prime is 11721467389. The next prime is 11721467419. The reversal of 11721467415 is 51476412711.

It is not a de Polignac number, because 11721467415 - 2⁹ = 11721466903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11721467419) 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 31 ways as a sum of consecutive naturals, for example, 124420 + ... + 197289.

It is an arithmetic number, because the mean of its divisors is an integer number (671730480).

Almost surely, 2^11721467415 is an apocalyptic number.

11721467415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11721467415 is a deficient number, since it is larger than the sum of its proper divisors (9773907945).

11721467415 is a wasteful number, since it uses less digits than its factorization.

11721467415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322071.

The product of its digits is 47040, while the sum is 39.

The spelling of 11721467415 in words is "eleven billion, seven hundred twenty-one million, four hundred sixty-seven thousand, four hundred fifteen".