3927879704249 has 2 divisors, whose sum is σ = 3927879704250. Its totient is φ = 3927879704248.

The previous prime is 3927879704233. The next prime is 3927879704263. The reversal of 3927879704249 is 9424079787293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2104588518400 + 1823291185849 = 1450720^2 + 1350293^2 .

It is an emirp because it is prime and its reverse (9424079787293) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3927879704249 - 2⁴ = 3927879704233 is a prime.

It is not a weakly prime, because it can be changed into another prime (3927879704209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1963939852124 + 1963939852125.

It is an arithmetic number, because the mean of its divisors is an integer number (1963939852125).

Almost surely, 2^{3927879704249} is an apocalyptic number.

It is an amenable number.

3927879704249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3927879704249 is an equidigital number, since it uses as much as digits as its factorization.

3927879704249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384072192, while the sum is 71.

The spelling of 3927879704249 in words is "three trillion, nine hundred twenty-seven billion, eight hundred seventy-nine million, seven hundred four thousand, two hundred forty-nine".