11528494375 has 10 divisors (see below), whose sum is σ = 14406007352. Its totient is φ = 9222795000.

The previous prime is 11528494363. The next prime is 11528494379. The reversal of 11528494375 is 57349482511.

It is a happy number.

It is not a de Polignac number, because 11528494375 - 2⁵ = 11528494343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11528494379) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9222171 + ... + 9223420.

Almost surely, 2^11528494375 is an apocalyptic number.

11528494375 is a deficient number, since it is larger than the sum of its proper divisors (2877512977).

11528494375 is an frugal number, since it uses more digits than its factorization.

11528494375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18445611 (or 18445596 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 49.

The spelling of 11528494375 in words is "eleven billion, five hundred twenty-eight million, four hundred ninety-four thousand, three hundred seventy-five".