11158235938 has 4 divisors (see below), whose sum is σ = 16737353910. Its totient is φ = 5579117968.

The previous prime is 11158235917. The next prime is 11158235941. The reversal of 11158235938 is 83953285111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83953285111 = 3571 ⋅23509741.

It can be written as a sum of positive squares in only one way, i.e., 8907018129 + 2251217809 = 94377^2 + 47447^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2789558983 + ... + 2789558986.

Almost surely, 2^11158235938 is an apocalyptic number.

11158235938 is a deficient number, since it is larger than the sum of its proper divisors (5579117972).

11158235938 is an equidigital number, since it uses as much as digits as its factorization.

11158235938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5579117971.

The product of its digits is 259200, while the sum is 46.

The spelling of 11158235938 in words is "eleven billion, one hundred fifty-eight million, two hundred thirty-five thousand, nine hundred thirty-eight".