11471435434417 has 12 divisors (see below), whose sum is σ = 13563082246836. Its totient is φ = 9671467811040.

The previous prime is 11471435434411. The next prime is 11471435434421. The reversal of 11471435434417 is 71443453417411.

It can be written as a sum of positive squares in 2 ways, for example, as 699228767601 + 10772206666816 = 836199^2 + 3282104^2 .

It is not a de Polignac number, because 11471435434417 - 2²³ = 11471427045809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11471435434411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1918939038 + ... + 1918945015.

It is an arithmetic number, because the mean of its divisors is an integer number (1130256853903).

Almost surely, 2^{11471435434417} is an apocalyptic number.

It is an amenable number.

11471435434417 is a deficient number, since it is larger than the sum of its proper divisors (2091646812419).

11471435434417 is an equidigital number, since it uses as much as digits as its factorization.

11471435434417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3837884128 (or 3837884121 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 49.

The spelling of 11471435434417 in words is "eleven trillion, four hundred seventy-one billion, four hundred thirty-five million, four hundred thirty-four thousand, four hundred seventeen".