39166274989 has 2 divisors, whose sum is σ = 39166274990. Its totient is φ = 39166274988.

The previous prime is 39166274977. The next prime is 39166275017. The reversal of 39166274989 is 98947266193.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22600010889 + 16566264100 = 150333^2 + 128710^2 .

It is a cyclic number.

It is not a de Polignac number, because 39166274989 - 2⁵ = 39166274957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39166274989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39166274909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19583137494 + 19583137495.

It is an arithmetic number, because the mean of its divisors is an integer number (19583137495).

Almost surely, 2^39166274989 is an apocalyptic number.

It is an amenable number.

39166274989 is a deficient number, since it is larger than the sum of its proper divisors (1).

39166274989 is an equidigital number, since it uses as much as digits as its factorization.

39166274989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35271936, while the sum is 64.

The spelling of 39166274989 in words is "thirty-nine billion, one hundred sixty-six million, two hundred seventy-four thousand, nine hundred eighty-nine".