678150801 has 12 divisors (see below), whose sum is σ = 992970628. Its totient is φ = 445906944.

The previous prime is 678150797. The next prime is 678150821. The reversal of 678150801 is 108051876.

It can be written as a sum of positive squares in 2 ways, for example, as 531256401 + 146894400 = 23049^2 + 12120^2 .

It is not a de Polignac number, because 678150801 - 2² = 678150797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (678150821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 515440 + ... + 516753.

Almost surely, 2^678150801 is an apocalyptic number.

It is an amenable number.

678150801 is a deficient number, since it is larger than the sum of its proper divisors (314819827).

678150801 is a wasteful number, since it uses less digits than its factorization.

678150801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032272 (or 1032269 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 678150801 is about 26041.3287103404. The cubic root of 678150801 is about 878.5680918487.

The spelling of 678150801 in words is "six hundred seventy-eight million, one hundred fifty thousand, eight hundred one".