678150854671 has 2 divisors, whose sum is σ = 678150854672. Its totient is φ = 678150854670.

The previous prime is 678150854657. The next prime is 678150854681. The reversal of 678150854671 is 176458051876.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 678150854671 - 2¹⁵ = 678150821903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (678150854681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339075427335 + 339075427336.

It is an arithmetic number, because the mean of its divisors is an integer number (339075427336).

Almost surely, 2^678150854671 is an apocalyptic number.

678150854671 is a deficient number, since it is larger than the sum of its proper divisors (1).

678150854671 is an equidigital number, since it uses as much as digits as its factorization.

678150854671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11289600, while the sum is 58.

The spelling of 678150854671 in words is "six hundred seventy-eight billion, one hundred fifty million, eight hundred fifty-four thousand, six hundred seventy-one".