3806778743711 has 2 divisors, whose sum is σ = 3806778743712. Its totient is φ = 3806778743710.

The previous prime is 3806778743659. The next prime is 3806778743777. The reversal of 3806778743711 is 1173478776083.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3806778743711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3806778743311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1903389371855 + 1903389371856.

It is an arithmetic number, because the mean of its divisors is an integer number (1903389371856).

Almost surely, 2^{3806778743711} is an apocalyptic number.

3806778743711 is a deficient number, since it is larger than the sum of its proper divisors (1).

3806778743711 is an equidigital number, since it uses as much as digits as its factorization.

3806778743711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33191424, while the sum is 62.

The spelling of 3806778743711 in words is "three trillion, eight hundred six billion, seven hundred seventy-eight million, seven hundred forty-three thousand, seven hundred eleven".