11831177653 has 4 divisors (see below), whose sum is σ = 11844516960. Its totient is φ = 11817838348.

The previous prime is 11831177639. The next prime is 11831177663. The reversal of 11831177653 is 35677113811.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35677113811 = 919 ⋅38821669.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11831177653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11831177663) 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, 6668323 + ... + 6670096.

It is an arithmetic number, because the mean of its divisors is an integer number (2961129240).

Almost surely, 2^11831177653 is an apocalyptic number.

It is an amenable number.

11831177653 is a deficient number, since it is larger than the sum of its proper divisors (13339307).

11831177653 is an equidigital number, since it uses as much as digits as its factorization.

11831177653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13339306.

The product of its digits is 105840, while the sum is 43.

The spelling of 11831177653 in words is "eleven billion, eight hundred thirty-one million, one hundred seventy-seven thousand, six hundred fifty-three".