11491492719 has 16 divisors (see below), whose sum is σ = 17550748160. Its totient is φ = 6551604000.

The previous prime is 11491492699. The next prime is 11491492721. The reversal of 11491492719 is 91729419411.

It is not a de Polignac number, because 11491492719 - 2⁵ = 11491492687 is a prime.

It is a super-2 number, since 2×11491492719² (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 (11491492769) 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, 614032 + ... + 632469.

It is an arithmetic number, because the mean of its divisors is an integer number (1096921760).

Almost surely, 2^11491492719 is an apocalyptic number.

11491492719 is a deficient number, since it is larger than the sum of its proper divisors (6059255441).

11491492719 is a wasteful number, since it uses less digits than its factorization.

11491492719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246950.

The product of its digits is 163296, while the sum is 48.

The spelling of 11491492719 in words is "eleven billion, four hundred ninety-one million, four hundred ninety-two thousand, seven hundred nineteen".