378855076687 has 2 divisors, whose sum is σ = 378855076688. Its totient is φ = 378855076686.

The previous prime is 378855076637. The next prime is 378855076759. The reversal of 378855076687 is 786670558873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378855076687 - 2⁷ = 378855076559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378855076637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189427538343 + 189427538344.

It is an arithmetic number, because the mean of its divisors is an integer number (189427538344).

Almost surely, 2^378855076687 is an apocalyptic number.

378855076687 is a deficient number, since it is larger than the sum of its proper divisors (1).

378855076687 is an equidigital number, since it uses as much as digits as its factorization.

378855076687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 474163200, while the sum is 70.

The spelling of 378855076687 in words is "three hundred seventy-eight billion, eight hundred fifty-five million, seventy-six thousand, six hundred eighty-seven".