11671812829 has 4 divisors (see below), whose sum is σ = 12179282976. Its totient is φ = 11164342684.

The previous prime is 11671812793. The next prime is 11671812839. The reversal of 11671812829 is 92821817611.

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 a cyclic number.

It is not a de Polignac number, because 11671812829 - 2¹⁵ = 11671780061 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 (11671812839) 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, 253735039 + ... + 253735084.

It is an arithmetic number, because the mean of its divisors is an integer number (3044820744).

Almost surely, 2^11671812829 is an apocalyptic number.

It is an amenable number.

11671812829 is a deficient number, since it is larger than the sum of its proper divisors (507470147).

11671812829 is an equidigital number, since it uses as much as digits as its factorization.

11671812829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507470146.

The product of its digits is 96768, while the sum is 46.

It can be divided in two parts, 11 and 671812829, that added together give a triangular number (671812840 = T₃₆₆₅₅).

The spelling of 11671812829 in words is "eleven billion, six hundred seventy-one million, eight hundred twelve thousand, eight hundred twenty-nine".