39928852277 has 2 divisors, whose sum is σ = 39928852278. Its totient is φ = 39928852276.

The previous prime is 39928852259. The next prime is 39928852297. The reversal of 39928852277 is 77225882993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30995010916 + 8933841361 = 176054^2 + 94519^2 .

It is a cyclic number.

It is not a de Polignac number, because 39928852277 - 2¹⁶ = 39928786741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39928852297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19964426138 + 19964426139.

It is an arithmetic number, because the mean of its divisors is an integer number (19964426139).

Almost surely, 2^39928852277 is an apocalyptic number.

It is an amenable number.

39928852277 is a deficient number, since it is larger than the sum of its proper divisors (1).

39928852277 is an equidigital number, since it uses as much as digits as its factorization.

39928852277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30481920, while the sum is 62.

The spelling of 39928852277 in words is "thirty-nine billion, nine hundred twenty-eight million, eight hundred fifty-two thousand, two hundred seventy-seven".