7438568938 has 4 divisors (see below), whose sum is σ = 11157853410. Its totient is φ = 3719284468.

The previous prime is 7438568927. The next prime is 7438568987. The reversal of 7438568938 is 8398658347.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8398658347 = 4099 ⋅2048953.

It can be written as a sum of positive squares in only one way, i.e., 3760510329 + 3678058609 = 61323^2 + 60647^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1859642233 + ... + 1859642236.

Almost surely, 2^7438568938 is an apocalyptic number.

7438568938 is a deficient number, since it is larger than the sum of its proper divisors (3719284472).

7438568938 is a wasteful number, since it uses less digits than its factorization.

7438568938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719284471.

The product of its digits is 34836480, while the sum is 61.

The square root of 7438568938 is about 86247.1387235542. The cubic root of 7438568938 is about 1952.0748406776.

The spelling of 7438568938 in words is "seven billion, four hundred thirty-eight million, five hundred sixty-eight thousand, nine hundred thirty-eight".