678485585100 has 36 divisors (see below), whose sum is σ = 1963084960424. Its totient is φ = 180929489280.

The previous prime is 678485585093. The next prime is 678485585101. The reversal of 678485585100 is 1585584876.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (678485585101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1130809009 + ... + 1130809608.

Almost surely, 2^678485585100 is an apocalyptic number.

678485585100 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

678485585100 is an abundant number, since it is smaller than the sum of its proper divisors (1284599375324).

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

678485585100 is a wasteful number, since it uses less digits than its factorization.

678485585100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261618634 (or 2261618627 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 57.

The spelling of 678485585100 in words is "six hundred seventy-eight billion, four hundred eighty-five million, five hundred eighty-five thousand, one hundred".