78043645411 has 8 divisors (see below), whose sum is σ = 78701543424. Its totient is φ = 77386425480.

The previous prime is 78043645391. The next prime is 78043645439. The reversal of 78043645411 is 11454634087.

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 78043645411 - 2¹³ = 78043637219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78043645451) 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, 62976 + ... + 400066.

It is an arithmetic number, because the mean of its divisors is an integer number (9837692928).

Almost surely, 2^78043645411 is an apocalyptic number.

78043645411 is a deficient number, since it is larger than the sum of its proper divisors (657898013).

78043645411 is a wasteful number, since it uses less digits than its factorization.

78043645411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339041.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 78043645411 in words is "seventy-eight billion, forty-three million, six hundred forty-five thousand, four hundred eleven".