377976655143361 has 2 divisors, whose sum is σ = 377976655143362. Its totient is φ = 377976655143360.

The previous prime is 377976655143359. The next prime is 377976655143377. The reversal of 377976655143361 is 163341556679773.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299329998936336 + 78646656207025 = 17301156^2 + 8868295^2 .

It is a cyclic number.

It is not a de Polignac number, because 377976655143361 - 2¹ = 377976655143359 is a prime.

Together with 377976655143359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (377976655141361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188988327571680 + 188988327571681.

It is an arithmetic number, because the mean of its divisors is an integer number (188988327571681).

Almost surely, 2^{377976655143361} is an apocalyptic number.

It is an amenable number.

377976655143361 is a deficient number, since it is larger than the sum of its proper divisors (1).

377976655143361 is an equidigital number, since it uses as much as digits as its factorization.

377976655143361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800338400, while the sum is 73.

The spelling of 377976655143361 in words is "three hundred seventy-seven trillion, nine hundred seventy-six billion, six hundred fifty-five million, one hundred forty-three thousand, three hundred sixty-one".