4664500138 has 4 divisors (see below), whose sum is σ = 6996750210. Its totient is φ = 2332250068.

The previous prime is 4664500129. The next prime is 4664500153. The reversal of 4664500138 is 8310054664.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4488062049 + 176438089 = 66993^2 + 13283^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4664500097 and 4664500106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1166125033 + ... + 1166125036.

Almost surely, 2^4664500138 is an apocalyptic number.

4664500138 is a deficient number, since it is larger than the sum of its proper divisors (2332250072).

4664500138 is a wasteful number, since it uses less digits than its factorization.

4664500138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332250071.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 4664500138 is about 68297.1458993712. The cubic root of 4664500138 is about 1670.8406655845.

The spelling of 4664500138 in words is "four billion, six hundred sixty-four million, five hundred thousand, one hundred thirty-eight".