678507609088 has 22 divisors (see below), whose sum is σ = 1356352615136. Its totient is φ = 339253804032.

The previous prime is 678507609079. The next prime is 678507609149. The reversal of 678507609088 is 880906705876.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 331301520 + ... + 331303567.

Almost surely, 2^678507609088 is an apocalyptic number.

It is an amenable number.

678507609088 is a deficient number, since it is larger than the sum of its proper divisors (677845006048).

678507609088 is an equidigital number, since it uses as much as digits as its factorization.

678507609088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662605107 (or 662605089 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 64.

The spelling of 678507609088 in words is "six hundred seventy-eight billion, five hundred seven million, six hundred nine thousand, eighty-eight".