4538556805857 has 4 divisors (see below), whose sum is σ = 6051409074480. Its totient is φ = 3025704537236.

The previous prime is 4538556805831. The next prime is 4538556805897. The reversal of 4538556805857 is 7585086558354.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4538556805857 - 2²⁸ = 4538288370401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4538556805791 and 4538556805800.

It is not an unprimeable number, because it can be changed into a prime (4538556805897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756426134307 + ... + 756426134312.

It is an arithmetic number, because the mean of its divisors is an integer number (1512852268620).

Almost surely, 2^{4538556805857} is an apocalyptic number.

It is an amenable number.

4538556805857 is a deficient number, since it is larger than the sum of its proper divisors (1512852268623).

4538556805857 is a wasteful number, since it uses less digits than its factorization.

4538556805857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512852268622.

The product of its (nonzero) digits is 806400000, while the sum is 69.

The spelling of 4538556805857 in words is "four trillion, five hundred thirty-eight billion, five hundred fifty-six million, eight hundred five thousand, eight hundred fifty-seven".