378874317427 has 2 divisors, whose sum is σ = 378874317428. Its totient is φ = 378874317426.

The previous prime is 378874317379. The next prime is 378874317433. The reversal of 378874317427 is 724713478873.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378874317427 is a prime.

It is not a weakly prime, because it can be changed into another prime (378874317827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189437158713 + 189437158714.

It is an arithmetic number, because the mean of its divisors is an integer number (189437158714).

Almost surely, 2^378874317427 is an apocalyptic number.

378874317427 is a deficient number, since it is larger than the sum of its proper divisors (1).

378874317427 is an equidigital number, since it uses as much as digits as its factorization.

378874317427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44255232, while the sum is 61.

The spelling of 378874317427 in words is "three hundred seventy-eight billion, eight hundred seventy-four million, three hundred seventeen thousand, four hundred twenty-seven".