11969231629 has 2 divisors, whose sum is σ = 11969231630. Its totient is φ = 11969231628.

The previous prime is 11969231597. The next prime is 11969231731. The reversal of 11969231629 is 92613296911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11967266025 + 1965604 = 109395^2 + 1402^2 .

It is a cyclic number.

It is not a de Polignac number, because 11969231629 - 2⁵ = 11969231597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11969231129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5984615814 + 5984615815.

It is an arithmetic number, because the mean of its divisors is an integer number (5984615815).

Almost surely, 2^11969231629 is an apocalyptic number.

It is an amenable number.

11969231629 is a deficient number, since it is larger than the sum of its proper divisors (1).

11969231629 is an equidigital number, since it uses as much as digits as its factorization.

11969231629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 49.

It can be divided in two parts, 119692 and 31629, that added together give a square (151321 = 389²).

The spelling of 11969231629 in words is "eleven billion, nine hundred sixty-nine million, two hundred thirty-one thousand, six hundred twenty-nine".