361864666903842 has 24 divisors (see below), whose sum is σ = 784235098131420. Its totient is φ = 120591557710560.

The previous prime is 361864666903841. The next prime is 361864666903843. The reversal of 361864666903842 is 248309666468163.

It is an interprime number because it is at equal distance from previous prime (361864666903841) and next prime (361864666903843).

It can be written as a sum of positive squares in 2 ways, for example, as 261175302924561 + 100689363979281 = 16160919^2 + 10034409^2 .

It is not an unprimeable number, because it can be changed into a prime (361864666903841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2499752617 + ... + 2499897372.

Almost surely, 2^{361864666903842} is an apocalyptic number.

361864666903842 is an abundant number, since it is smaller than the sum of its proper divisors (422370431227578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

361864666903842 is a wasteful number, since it uses less digits than its factorization.

361864666903842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999654018 (or 4999654015 counting only the distinct ones).

The product of its (nonzero) digits is 1289945088, while the sum is 72.

The spelling of 361864666903842 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-two".