3658846543816 has 8 divisors (see below), whose sum is σ = 6860337269670. Its totient is φ = 1829423271904.

The previous prime is 3658846543787. The next prime is 3658846543819. The reversal of 3658846543816 is 6183456488563.

It can be written as a sum of positive squares in only one way, i.e., 3558391776900 + 100454766916 = 1886370^2 + 316946^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (3658846543819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228677908981 + ... + 228677908996.

Almost surely, 2^{3658846543816} is an apocalyptic number.

It is an amenable number.

3658846543816 is a deficient number, since it is larger than the sum of its proper divisors (3201490725854).

3658846543816 is a wasteful number, since it uses less digits than its factorization.

3658846543816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457355817983 (or 457355817979 counting only the distinct ones).

The product of its digits is 398131200, while the sum is 67.

The spelling of 3658846543816 in words is "three trillion, six hundred fifty-eight billion, eight hundred forty-six million, five hundred forty-three thousand, eight hundred sixteen".