11257138408 has 16 divisors (see below), whose sum is σ = 21677598180. Its totient is φ = 5476445568.

The previous prime is 11257138379. The next prime is 11257138427. The reversal of 11257138408 is 80483175211.

It can be written as a sum of positive squares in 2 ways, for example, as 11185600644 + 71537764 = 105762^2 + 8458^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19015141 + ... + 19015732.

Almost surely, 2^11257138408 is an apocalyptic number.

It is an amenable number.

11257138408 is a deficient number, since it is larger than the sum of its proper divisors (10420459772).

11257138408 is a wasteful number, since it uses less digits than its factorization.

11257138408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38030916 (or 38030912 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 11257138408 in words is "eleven billion, two hundred fifty-seven million, one hundred thirty-eight thousand, four hundred eight".