11475609497 has 4 divisors (see below), whose sum is σ = 12518846736. Its totient is φ = 10432372260.

The previous prime is 11475609479. The next prime is 11475609503. The reversal of 11475609497 is 79490657411.

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 11475609497 - 2³² = 7180642201 is a prime.

It is a super-2 number, since 2×11475609497² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11475609407) 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, 521618603 + ... + 521618624.

It is an arithmetic number, because the mean of its divisors is an integer number (3129711684).

Almost surely, 2^11475609497 is an apocalyptic number.

It is an amenable number.

11475609497 is a deficient number, since it is larger than the sum of its proper divisors (1043237239).

11475609497 is a wasteful number, since it uses less digits than its factorization.

11475609497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043237238.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 11475609497 in words is "eleven billion, four hundred seventy-five million, six hundred nine thousand, four hundred ninety-seven".