378874142687 has 2 divisors, whose sum is σ = 378874142688. Its totient is φ = 378874142686.

The previous prime is 378874142683. The next prime is 378874142741. The reversal of 378874142687 is 786241478873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378874142687 - 2² = 378874142683 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378874142683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189437071343 + 189437071344.

It is an arithmetic number, because the mean of its divisors is an integer number (189437071344).

Almost surely, 2^378874142687 is an apocalyptic number.

378874142687 is a deficient number, since it is larger than the sum of its proper divisors (1).

378874142687 is an equidigital number, since it uses as much as digits as its factorization.

378874142687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 101154816, while the sum is 65.

The spelling of 378874142687 in words is "three hundred seventy-eight billion, eight hundred seventy-four million, one hundred forty-two thousand, six hundred eighty-seven".