3178780563887 has 2 divisors, whose sum is σ = 3178780563888. Its totient is φ = 3178780563886.

The previous prime is 3178780563853. The next prime is 3178780563941. The reversal of 3178780563887 is 7883650878713.

3178780563887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (7883650878713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3178780563887 - 2¹⁶ = 3178780498351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3178780563887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3178780563187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1589390281943 + 1589390281944.

It is an arithmetic number, because the mean of its divisors is an integer number (1589390281944).

Almost surely, 2^{3178780563887} is an apocalyptic number.

3178780563887 is a deficient number, since it is larger than the sum of its proper divisors (1).

3178780563887 is an equidigital number, since it uses as much as digits as its factorization.

3178780563887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 379330560, while the sum is 71.

The spelling of 3178780563887 in words is "three trillion, one hundred seventy-eight billion, seven hundred eighty million, five hundred sixty-three thousand, eight hundred eighty-seven".