11071465447 has 4 divisors (see below), whose sum is σ = 12653103376. Its totient is φ = 9489827520.

The previous prime is 11071465439. The next prime is 11071465453. The reversal of 11071465447 is 74456417011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11071465447 - 2³ = 11071465439 is a prime.

It is a super-2 number, since 2×11071465447² (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 (11071465477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790818954 + ... + 790818967.

It is an arithmetic number, because the mean of its divisors is an integer number (3163275844).

Almost surely, 2^11071465447 is an apocalyptic number.

11071465447 is a deficient number, since it is larger than the sum of its proper divisors (1581637929).

11071465447 is an equidigital number, since it uses as much as digits as its factorization.

11071465447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581637928.

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 11071465447 in words is "eleven billion, seventy-one million, four hundred sixty-five thousand, four hundred forty-seven".