909479617133 has 4 divisors (see below), whose sum is σ = 909535052448. Its totient is φ = 909424181820.

The previous prime is 909479617117. The next prime is 909479617147. The reversal of 909479617133 is 331716974909.

909479617133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 331716974909 = 193093 ⋅1717913.

It is a cyclic number.

It is not a de Polignac number, because 909479617133 - 2⁴ = 909479617117 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 (909479617433) 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, 27693041 + ... + 27725862.

It is an arithmetic number, because the mean of its divisors is an integer number (227383763112).

Almost surely, 2^909479617133 is an apocalyptic number.

It is an amenable number.

909479617133 is a deficient number, since it is larger than the sum of its proper divisors (55435315).

909479617133 is a wasteful number, since it uses less digits than its factorization.

909479617133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55435314.

The product of its (nonzero) digits is 7715736, while the sum is 59.

The spelling of 909479617133 in words is "nine hundred nine billion, four hundred seventy-nine million, six hundred seventeen thousand, one hundred thirty-three".