3678632860865 has 32 divisors (see below), whose sum is σ = 4690218314880. Its totient is φ = 2761927289856.

The previous prime is 3678632860853. The next prime is 3678632860897. The reversal of 3678632860865 is 5680682368763.

It is a cyclic number.

It is not a de Polignac number, because 3678632860865 - 2⁶ = 3678632860801 is a prime.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3678632860795 and 3678632860804.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21093314 + ... + 21266996.

It is an arithmetic number, because the mean of its divisors is an integer number (146569322340).

Almost surely, 2^{3678632860865} is an apocalyptic number.

It is an amenable number.

3678632860865 is a deficient number, since it is larger than the sum of its proper divisors (1011585454015).

3678632860865 is a wasteful number, since it uses less digits than its factorization.

3678632860865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175793.

The product of its (nonzero) digits is 418037760, while the sum is 68.

The spelling of 3678632860865 in words is "three trillion, six hundred seventy-eight billion, six hundred thirty-two million, eight hundred sixty thousand, eight hundred sixty-five".