381142679017 has 2 divisors, whose sum is σ = 381142679018. Its totient is φ = 381142679016.

The previous prime is 381142679011. The next prime is 381142679063. The reversal of 381142679017 is 710976241183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230403840016 + 150738839001 = 480004^2 + 388251^2 .

It is a cyclic number.

It is not a de Polignac number, because 381142679017 - 2³ = 381142679009 is a prime.

It is not a weakly prime, because it can be changed into another prime (381142679011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190571339508 + 190571339509.

It is an arithmetic number, because the mean of its divisors is an integer number (190571339509).

Almost surely, 2^381142679017 is an apocalyptic number.

It is an amenable number.

381142679017 is a deficient number, since it is larger than the sum of its proper divisors (1).

381142679017 is an equidigital number, since it uses as much as digits as its factorization.

381142679017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 381142679017 in words is "three hundred eighty-one billion, one hundred forty-two million, six hundred seventy-nine thousand, seventeen".