378164862137 has 2 divisors, whose sum is σ = 378164862138. Its totient is φ = 378164862136.

The previous prime is 378164862083. The next prime is 378164862139. The reversal of 378164862137 is 731268461873.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374465668096 + 3699194041 = 611936^2 + 60821^2 .

It is a cyclic number.

It is not a de Polignac number, because 378164862137 - 2²⁴ = 378148084921 is a prime.

Together with 378164862139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (378164862139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189082431068 + 189082431069.

It is an arithmetic number, because the mean of its divisors is an integer number (189082431069).

Almost surely, 2^378164862137 is an apocalyptic number.

It is an amenable number.

378164862137 is a deficient number, since it is larger than the sum of its proper divisors (1).

378164862137 is an equidigital number, since it uses as much as digits as its factorization.

378164862137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8128512, while the sum is 56.

The spelling of 378164862137 in words is "three hundred seventy-eight billion, one hundred sixty-four million, eight hundred sixty-two thousand, one hundred thirty-seven".