376255407978649 has 2 divisors, whose sum is σ = 376255407978650. Its totient is φ = 376255407978648.

The previous prime is 376255407978629. The next prime is 376255407978679. The reversal of 376255407978649 is 946879704552673.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374355165027600 + 1900242951049 = 19348260^2 + 1378493^2 .

It is a cyclic number.

It is not a de Polignac number, because 376255407978649 - 2⁹ = 376255407978137 is a prime.

It is not a weakly prime, because it can be changed into another prime (376255407978629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188127703989324 + 188127703989325.

It is an arithmetic number, because the mean of its divisors is an integer number (188127703989325).

Almost surely, 2^{376255407978649} is an apocalyptic number.

It is an amenable number.

376255407978649 is a deficient number, since it is larger than the sum of its proper divisors (1).

376255407978649 is an equidigital number, since it uses as much as digits as its factorization.

376255407978649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19203609600, while the sum is 82.

The spelling of 376255407978649 in words is "three hundred seventy-six trillion, two hundred fifty-five billion, four hundred seven million, nine hundred seventy-eight thousand, six hundred forty-nine".