11473408997 has 16 divisors (see below), whose sum is σ = 12021490800. Its totient is φ = 10936235520.

The previous prime is 11473408979. The next prime is 11473409023. The reversal of 11473408997 is 79980437411.

It is a happy number.

It is a Cunningham number, because it is equal to 107114²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 580520836 + 10892888161 = 24094^2 + 104369^2 .

It is a cyclic number.

It is not a de Polignac number, because 11473408997 - 2²⁶ = 11406300133 is a prime.

It is a super-2 number, since 2×11473408997² (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 (11473408907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 881783 + ... + 894699.

It is an arithmetic number, because the mean of its divisors is an integer number (751343175).

Almost surely, 2^11473408997 is an apocalyptic number.

It is an amenable number.

11473408997 is a deficient number, since it is larger than the sum of its proper divisors (548081803).

11473408997 is a wasteful number, since it uses less digits than its factorization.

11473408997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13336.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 11473408997 in words is "eleven billion, four hundred seventy-three million, four hundred eight thousand, nine hundred ninety-seven".