12169290437 has 2 divisors, whose sum is σ = 12169290438. Its totient is φ = 12169290436.

The previous prime is 12169290389. The next prime is 12169290461. The reversal of 12169290437 is 73409296121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10683496321 + 1485794116 = 103361^2 + 38546^2 .

It is a cyclic number.

It is not a de Polignac number, because 12169290437 - 2¹⁸ = 12169028293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12169290037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6084645218 + 6084645219.

It is an arithmetic number, because the mean of its divisors is an integer number (6084645219).

Almost surely, 2^12169290437 is an apocalyptic number.

It is an amenable number.

12169290437 is a deficient number, since it is larger than the sum of its proper divisors (1).

12169290437 is an equidigital number, since it uses as much as digits as its factorization.

12169290437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 12169290437 in words is "twelve billion, one hundred sixty-nine million, two hundred ninety thousand, four hundred thirty-seven".