11929128352829 has 4 divisors (see below), whose sum is σ = 12220082702940. Its totient is φ = 11638174002720.

The previous prime is 11929128352783. The next prime is 11929128352847. The reversal of 11929128352829 is 92825382192911.

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 2034266080729 + 9894862272100 = 1426277^2 + 3145610^2 .

It is a cyclic number.

It is not a de Polignac number, because 11929128352829 - 2²⁴ = 11929111575613 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 (11929128352859) 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, 145477174994 + ... + 145477175075.

It is an arithmetic number, because the mean of its divisors is an integer number (3055020675735).

Almost surely, 2^{11929128352829} is an apocalyptic number.

It is an amenable number.

11929128352829 is a deficient number, since it is larger than the sum of its proper divisors (290954350111).

11929128352829 is an equidigital number, since it uses as much as digits as its factorization.

11929128352829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290954350110.

The product of its digits is 11197440, while the sum is 62.

The spelling of 11929128352829 in words is "eleven trillion, nine hundred twenty-nine billion, one hundred twenty-eight million, three hundred fifty-two thousand, eight hundred twenty-nine".