678800310630 has 32 divisors (see below), whose sum is σ = 1754437726944. Its totient is φ = 167089307136.

The previous prime is 678800310623. The next prime is 678800310631. The reversal of 678800310630 is 36013008876.

It is a super-2 number, since 2×678800310630² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678800310631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 870256419 + ... + 870257198.

It is an arithmetic number, because the mean of its divisors is an integer number (54826178967).

Almost surely, 2^678800310630 is an apocalyptic number.

678800310630 is an abundant number, since it is smaller than the sum of its proper divisors (1075637416314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678800310630 is a wasteful number, since it uses less digits than its factorization.

678800310630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740513640.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 678800310630 in words is "six hundred seventy-eight billion, eight hundred million, three hundred ten thousand, six hundred thirty".