678757563255 has 32 divisors (see below), whose sum is σ = 1092363192000. Its totient is φ = 359892836352.

The previous prime is 678757563229. The next prime is 678757563271. The reversal of 678757563255 is 552365757876.

It is not a de Polignac number, because 678757563255 - 2⁶ = 678757563191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1683681 + ... + 2047509.

It is an arithmetic number, because the mean of its divisors is an integer number (34136349750).

Almost surely, 2^678757563255 is an apocalyptic number.

678757563255 is a deficient number, since it is larger than the sum of its proper divisors (413605628745).

678757563255 is a wasteful number, since it uses less digits than its factorization.

678757563255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364563.

The product of its digits is 370440000, while the sum is 66.

The spelling of 678757563255 in words is "six hundred seventy-eight billion, seven hundred fifty-seven million, five hundred sixty-three thousand, two hundred fifty-five".