4118638257 has 6 divisors (see below), whose sum is σ = 5949144162. Its totient is φ = 2745758832.

The previous prime is 4118638243. The next prime is 4118638259. The reversal of 4118638257 is 7528368114.

4118638257 is a `hidden beast` number, since 4 + 1 + 1 + 8 + 638 + 2 + 5 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3653114481 + 465523776 = 60441^2 + 21576^2 .

It is not a de Polignac number, because 4118638257 - 2¹⁴ = 4118621873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4118638259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228813228 + ... + 228813245.

It is an arithmetic number, because the mean of its divisors is an integer number (991524027).

Almost surely, 2^4118638257 is an apocalyptic number.

It is an amenable number.

4118638257 is a deficient number, since it is larger than the sum of its proper divisors (1830505905).

4118638257 is a wasteful number, since it uses less digits than its factorization.

4118638257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457626479 (or 457626476 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 4118638257 is about 64176.6176812085. The cubic root of 4118638257 is about 1602.9422757802.

The spelling of 4118638257 in words is "four billion, one hundred eighteen million, six hundred thirty-eight thousand, two hundred fifty-seven".