3648186401 has 4 divisors (see below), whose sum is σ = 3649424772. Its totient is φ = 3646948032.

The previous prime is 3648186391. The next prime is 3648186403. The reversal of 3648186401 is 1046818463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1046818463 = 23753 ⋅44071.

It can be written as a sum of positive squares in 2 ways, for example, as 1358659600 + 2289526801 = 36860^2 + 47849^2 .

It is a cyclic number.

It is not a de Polignac number, because 3648186401 - 2¹⁴ = 3648170017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3648186403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614756 + ... + 620661.

It is an arithmetic number, because the mean of its divisors is an integer number (912356193).

Almost surely, 2^3648186401 is an apocalyptic number.

It is an amenable number.

3648186401 is a deficient number, since it is larger than the sum of its proper divisors (1238371).

3648186401 is a wasteful number, since it uses less digits than its factorization.

3648186401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238370.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 3648186401 is about 60400.2185509291. The cubic root of 3648186401 is about 1539.4266715254.

The spelling of 3648186401 in words is "three billion, six hundred forty-eight million, one hundred eighty-six thousand, four hundred one".