78543444741 has 8 divisors (see below), whose sum is σ = 104993809440. Its totient is φ = 52227688272.

The previous prime is 78543444719. The next prime is 78543444751. The reversal of 78543444741 is 14744434587.

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

It is not a de Polignac number, because 78543444741 - 2⁹ = 78543444229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78543444751) 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 7 ways as a sum of consecutive naturals, for example, 33650695 + ... + 33653028.

It is an arithmetic number, because the mean of its divisors is an integer number (13124226180).

Almost surely, 2^78543444741 is an apocalyptic number.

It is an amenable number.

78543444741 is a deficient number, since it is larger than the sum of its proper divisors (26450364699).

78543444741 is a wasteful number, since it uses less digits than its factorization.

78543444741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67304115.

The product of its digits is 6021120, while the sum is 51.

The spelling of 78543444741 in words is "seventy-eight billion, five hundred forty-three million, four hundred forty-four thousand, seven hundred forty-one".