4947781849646 has 8 divisors (see below), whose sum is σ = 7812287131080. Its totient is φ = 2343686139288.

The previous prime is 4947781849603. The next prime is 4947781849687. The reversal of 4947781849646 is 6469481877494.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65102392721 + ... + 65102392796.

It is an arithmetic number, because the mean of its divisors is an integer number (976535891385).

Almost surely, 2^{4947781849646} is an apocalyptic number.

4947781849646 is a deficient number, since it is larger than the sum of its proper divisors (2864505281434).

4947781849646 is a wasteful number, since it uses less digits than its factorization.

4947781849646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130204785538.

The product of its digits is 2341011456, while the sum is 77.

The spelling of 4947781849646 in words is "four trillion, nine hundred forty-seven billion, seven hundred eighty-one million, eight hundred forty-nine thousand, six hundred forty-six".