4775736645 has 64 divisors (see below), whose sum is σ = 9049812480. Its totient is φ = 2381184000.

The previous prime is 4775736613. The next prime is 4775736661. The reversal of 4775736645 is 5466375774.

It is a happy number.

4775736645 is a `hidden beast` number, since 4 + 7 + 7 + 573 + 6 + 64 + 5 = 666.

It is not a de Polignac number, because 4775736645 - 2⁵ = 4775736613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4775736591 and 4775736600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 339655 + ... + 353435.

It is an arithmetic number, because the mean of its divisors is an integer number (141403320).

Almost surely, 2^4775736645 is an apocalyptic number.

4775736645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4775736645 is a deficient number, since it is larger than the sum of its proper divisors (4274075835).

4775736645 is a wasteful number, since it uses less digits than its factorization.

4775736645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13963 (or 13957 counting only the distinct ones).

The product of its digits is 14817600, while the sum is 54.

The square root of 4775736645 is about 69106.7047760201. The cubic root of 4775736645 is about 1684.0182354487.

The spelling of 4775736645 in words is "four billion, seven hundred seventy-five million, seven hundred thirty-six thousand, six hundred forty-five".