11040438497 has 4 divisors (see below), whose sum is σ = 12044114736. Its totient is φ = 10036762260.

The previous prime is 11040438481. The next prime is 11040438517. The reversal of 11040438497 is 79483404011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11040438497 - 2⁴ = 11040438481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11040438407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501838103 + ... + 501838124.

It is an arithmetic number, because the mean of its divisors is an integer number (3011028684).

Almost surely, 2^11040438497 is an apocalyptic number.

It is an amenable number.

11040438497 is a deficient number, since it is larger than the sum of its proper divisors (1003676239).

11040438497 is a wasteful number, since it uses less digits than its factorization.

11040438497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003676238.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 11040438497 in words is "eleven billion, forty million, four hundred thirty-eight thousand, four hundred ninety-seven".