78432169841 has 8 divisors (see below), whose sum is σ = 82568102400. Its totient is φ = 74297029680.

The previous prime is 78432169817. The next prime is 78432169861. The reversal of 78432169841 is 14896123487.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78432169841 - 2³⁴ = 61252300657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78432169811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10736 + ... + 396206.

It is an arithmetic number, because the mean of its divisors is an integer number (10321012800).

Almost surely, 2^78432169841 is an apocalyptic number.

It is an amenable number.

78432169841 is a deficient number, since it is larger than the sum of its proper divisors (4135932559).

78432169841 is a wasteful number, since it uses less digits than its factorization.

78432169841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396199.

The product of its digits is 2322432, while the sum is 53.

The spelling of 78432169841 in words is "seventy-eight billion, four hundred thirty-two million, one hundred sixty-nine thousand, eight hundred forty-one".