11876857457 has 4 divisors (see below), whose sum is σ = 11942475636. Its totient is φ = 11811239280.

The previous prime is 11876857453. The next prime is 11876857463. The reversal of 11876857457 is 75475867811.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1545354721 + 10331502736 = 39311^2 + 101644^2 .

It is a cyclic number.

It is not a de Polignac number, because 11876857457 - 2² = 11876857453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11876857396 and 11876857405.

It is not an unprimeable number, because it can be changed into a prime (11876857453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32808818 + ... + 32809179.

It is an arithmetic number, because the mean of its divisors is an integer number (2985618909).

Almost surely, 2^11876857457 is an apocalyptic number.

It is an amenable number.

11876857457 is a deficient number, since it is larger than the sum of its proper divisors (65618179).

11876857457 is an equidigital number, since it uses as much as digits as its factorization.

11876857457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65618178.

The product of its digits is 13171200, while the sum is 59.

The spelling of 11876857457 in words is "eleven billion, eight hundred seventy-six million, eight hundred fifty-seven thousand, four hundred fifty-seven".