678331250457 has 16 divisors (see below), whose sum is σ = 1035770115072. Its totient is φ = 386821921680.

The previous prime is 678331250447. The next prime is 678331250461. The reversal of 678331250457 is 754052133876.

It is not a de Polignac number, because 678331250457 - 2⁶ = 678331250393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (678331250447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33153519 + ... + 33173972.

It is an arithmetic number, because the mean of its divisors is an integer number (64735632192).

Almost surely, 2^678331250457 is an apocalyptic number.

It is an amenable number.

678331250457 is a deficient number, since it is larger than the sum of its proper divisors (357438864615).

678331250457 is a wasteful number, since it uses less digits than its factorization.

678331250457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66327988.

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 678331250457 in words is "six hundred seventy-eight billion, three hundred thirty-one million, two hundred fifty thousand, four hundred fifty-seven".