78069568841 has 4 divisors (see below), whose sum is σ = 85166802384. Its totient is φ = 70972335300.

The previous prime is 78069568823. The next prime is 78069568853. The reversal of 78069568841 is 14886596087.

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 78069568841 - 2³⁰ = 76995827017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78069561841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3548616755 + ... + 3548616776.

It is an arithmetic number, because the mean of its divisors is an integer number (21291700596).

Almost surely, 2^78069568841 is an apocalyptic number.

It is an amenable number.

78069568841 is a deficient number, since it is larger than the sum of its proper divisors (7097233543).

78069568841 is a wasteful number, since it uses less digits than its factorization.

78069568841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7097233542.

The product of its (nonzero) digits is 23224320, while the sum is 62.

The spelling of 78069568841 in words is "seventy-eight billion, sixty-nine million, five hundred sixty-eight thousand, eight hundred forty-one".