361864666903843 has 2 divisors, whose sum is σ = 361864666903844. Its totient is φ = 361864666903842.

The previous prime is 361864666903841. The next prime is 361864666903877. The reversal of 361864666903843 is 348309666468163.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 361864666903843 - 2¹ = 361864666903841 is a prime.

Together with 361864666903841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (361864666903841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180932333451921 + 180932333451922.

It is an arithmetic number, because the mean of its divisors is an integer number (180932333451922).

Almost surely, 2^{361864666903843} is an apocalyptic number.

361864666903843 is a deficient number, since it is larger than the sum of its proper divisors (1).

361864666903843 is an equidigital number, since it uses as much as digits as its factorization.

361864666903843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1934917632, while the sum is 73.

The spelling of 361864666903843 in words is "three hundred sixty-one trillion, eight hundred sixty-four billion, six hundred sixty-six million, nine hundred three thousand, eight hundred forty-three".