3840185636402 has 8 divisors (see below), whose sum is σ = 5825000684700. Its totient is φ = 1898518741504.

The previous prime is 3840185636377. The next prime is 3840185636429. The reversal of 3840185636402 is 2046365810483.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3805421661001 + 34763975401 = 1950749^2 + 186451^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10787038127 + ... + 10787038482.

Almost surely, 2^{3840185636402} is an apocalyptic number.

3840185636402 is a deficient number, since it is larger than the sum of its proper divisors (1984815048298).

3840185636402 is a wasteful number, since it uses less digits than its factorization.

3840185636402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21574076700.

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 3840185636402 in words is "three trillion, eight hundred forty billion, one hundred eighty-five million, six hundred thirty-six thousand, four hundred two".