3643855478746 has 8 divisors (see below), whose sum is σ = 6246609392160. Its totient is φ = 1561652348028.

The previous prime is 3643855478729. The next prime is 3643855478761. The reversal of 3643855478746 is 6478745583463.

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, 130137695656 + ... + 130137695683.

It is an arithmetic number, because the mean of its divisors is an integer number (780826174020).

Almost surely, 2^{3643855478746} is an apocalyptic number.

3643855478746 is a deficient number, since it is larger than the sum of its proper divisors (2602753913414).

3643855478746 is a wasteful number, since it uses less digits than its factorization.

3643855478746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260275391348.

The product of its digits is 1625702400, while the sum is 70.

The spelling of 3643855478746 in words is "three trillion, six hundred forty-three billion, eight hundred fifty-five million, four hundred seventy-eight thousand, seven hundred forty-six".