11471371457 has 16 divisors (see below), whose sum is σ = 14605463040. Its totient is φ = 8763273792.

The previous prime is 11471371447. The next prime is 11471371489. The reversal of 11471371457 is 75417317411.

It is not a de Polignac number, because 11471371457 - 2²⁴ = 11454594241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11471371447) 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, 2170793 + ... + 2176070.

It is an arithmetic number, because the mean of its divisors is an integer number (912841440).

Almost surely, 2^11471371457 is an apocalyptic number.

It is an amenable number.

11471371457 is a deficient number, since it is larger than the sum of its proper divisors (3134091583).

11471371457 is a wasteful number, since it uses less digits than its factorization.

11471371457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346912.

The product of its digits is 82320, while the sum is 41.

Adding to 11471371457 its reverse (75417317411), we get a palindrome (86888688868).

The spelling of 11471371457 in words is "eleven billion, four hundred seventy-one million, three hundred seventy-one thousand, four hundred fifty-seven".