11471461057 has 4 divisors (see below), whose sum is σ = 13110241216. Its totient is φ = 9832680900.

The previous prime is 11471461049. The next prime is 11471461073. The reversal of 11471461057 is 75016417411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11471461057 - 2³ = 11471461049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11471461007) 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, 819390069 + ... + 819390082.

It is an arithmetic number, because the mean of its divisors is an integer number (3277560304).

Almost surely, 2^11471461057 is an apocalyptic number.

It is an amenable number.

11471461057 is a deficient number, since it is larger than the sum of its proper divisors (1638780159).

11471461057 is an equidigital number, since it uses as much as digits as its factorization.

11471461057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638780158.

The product of its (nonzero) digits is 23520, while the sum is 37.

Adding to 11471461057 its reverse (75016417411), we get a palindrome (86487878468).

The spelling of 11471461057 in words is "eleven billion, four hundred seventy-one million, four hundred sixty-one thousand, fifty-seven".