4654856781 has 8 divisors (see below), whose sum is σ = 6896084160. Its totient is φ = 3103237836.

The previous prime is 4654856777. The next prime is 4654856783. The reversal of 4654856781 is 1876584564.

4654856781 is a `hidden beast` number, since 46 + 548 + 56 + 7 + 8 + 1 = 666.

It is not a de Polignac number, because 4654856781 - 2² = 4654856777 is a prime.

It is a super-2 number, since 2×4654856781² = 43335383303243363922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4654856783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86201025 + ... + 86201078.

It is an arithmetic number, because the mean of its divisors is an integer number (862010520).

Almost surely, 2^4654856781 is an apocalyptic number.

It is an amenable number.

4654856781 is a deficient number, since it is larger than the sum of its proper divisors (2241227379).

4654856781 is a wasteful number, since it uses less digits than its factorization.

4654856781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172402112 (or 172402106 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The square root of 4654856781 is about 68226.5108370639. The cubic root of 4654856781 is about 1669.6884428413.

The spelling of 4654856781 in words is "four billion, six hundred fifty-four million, eight hundred fifty-six thousand, seven hundred eighty-one".