39091000469 has 2 divisors, whose sum is σ = 39091000470. Its totient is φ = 39091000468.

The previous prime is 39091000427. The next prime is 39091000483. The reversal of 39091000469 is 96400019093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31051726225 + 8039274244 = 176215^2 + 89662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39091000469 is a prime.

It is a super-2 number, since 2×39091000469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39091000769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19545500234 + 19545500235.

It is an arithmetic number, because the mean of its divisors is an integer number (19545500235).

Almost surely, 2^39091000469 is an apocalyptic number.

It is an amenable number.

39091000469 is a deficient number, since it is larger than the sum of its proper divisors (1).

39091000469 is an equidigital number, since it uses as much as digits as its factorization.

39091000469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 41.

The spelling of 39091000469 in words is "thirty-nine billion, ninety-one million, four hundred sixty-nine", and thus it is an aban number.