375649946317 has 2 divisors, whose sum is σ = 375649946318. Its totient is φ = 375649946316.

The previous prime is 375649946263. The next prime is 375649946341. The reversal of 375649946317 is 713649946573.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309381800841 + 66268145476 = 556221^2 + 257426^2 .

It is an emirp because it is prime and its reverse (713649946573) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 375649946317 - 2¹⁵ = 375649913549 is a prime.

It is a super-2 number, since 2×375649946317² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (375649946117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187824973158 + 187824973159.

It is an arithmetic number, because the mean of its divisors is an integer number (187824973159).

Almost surely, 2^375649946317 is an apocalyptic number.

It is an amenable number.

375649946317 is a deficient number, since it is larger than the sum of its proper divisors (1).

375649946317 is an equidigital number, since it uses as much as digits as its factorization.

375649946317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102876480, while the sum is 64.

The spelling of 375649946317 in words is "three hundred seventy-five billion, six hundred forty-nine million, nine hundred forty-six thousand, three hundred seventeen".