678118763543 has 8 divisors (see below), whose sum is σ = 739525819200. Its totient is φ = 618032289888.

The previous prime is 678118763533. The next prime is 678118763551. The reversal of 678118763543 is 345367811876.

678118763543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 678118763543 - 2⁶ = 678118763479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678118763533) 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, 330144428 + ... + 330146481.

It is an arithmetic number, because the mean of its divisors is an integer number (92440727400).

Almost surely, 2^678118763543 is an apocalyptic number.

678118763543 is a deficient number, since it is larger than the sum of its proper divisors (61407055657).

678118763543 is a wasteful number, since it uses less digits than its factorization.

678118763543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660291001.

The product of its digits is 20321280, while the sum is 59.

The spelling of 678118763543 in words is "six hundred seventy-eight billion, one hundred eighteen million, seven hundred sixty-three thousand, five hundred forty-three".