76479675809 has 4 divisors (see below), whose sum is σ = 76480679616. Its totient is φ = 76478672004.

The previous prime is 76479675761. The next prime is 76479675847. The reversal of 76479675809 is 90857697467.

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: 90857697467 = 126107 ⋅720481.

It is a cyclic number.

It is not a de Polignac number, because 76479675809 - 2³² = 72184708513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76479675869) by changing a digit.

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, 377309 + ... + 543434.

It is an arithmetic number, because the mean of its divisors is an integer number (19120169904).

Almost surely, 2^76479675809 is an apocalyptic number.

It is an amenable number.

76479675809 is a deficient number, since it is larger than the sum of its proper divisors (1003807).

76479675809 is an equidigital number, since it uses as much as digits as its factorization.

76479675809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003806.

The product of its (nonzero) digits is 160030080, while the sum is 68.

The spelling of 76479675809 in words is "seventy-six billion, four hundred seventy-nine million, six hundred seventy-five thousand, eight hundred nine".