4640856307768 has 8 divisors (see below), whose sum is σ = 8701605577080. Its totient is φ = 2320428153880.

The previous prime is 4640856307753. The next prime is 4640856307781. The reversal of 4640856307768 is 8677036580464.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290053519228 + ... + 290053519243.

It is an arithmetic number, because the mean of its divisors is an integer number (1087700697135).

Almost surely, 2^{4640856307768} is an apocalyptic number.

It is an amenable number.

4640856307768 is a deficient number, since it is larger than the sum of its proper divisors (4060749269312).

4640856307768 is a wasteful number, since it uses less digits than its factorization.

4640856307768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580107038477 (or 580107038473 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 64.

The spelling of 4640856307768 in words is "four trillion, six hundred forty billion, eight hundred fifty-six million, three hundred seven thousand, seven hundred sixty-eight".