678271794240 has 112 divisors (see below), whose sum is σ = 2227772105280. Its totient is φ = 174635489280.

The previous prime is 678271794223. The next prime is 678271794247. The reversal of 678271794240 is 42497172876.

It is not an unprimeable number, because it can be changed into a prime (678271794247) 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, 12153766 + ... + 12209445.

Almost surely, 2^678271794240 is an apocalyptic number.

678271794240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

678271794240 is an abundant number, since it is smaller than the sum of its proper divisors (1549500311040).

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

678271794240 is a wasteful number, since it uses less digits than its factorization.

678271794240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24363260 (or 24363250 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 57.

The spelling of 678271794240 in words is "six hundred seventy-eight billion, two hundred seventy-one million, seven hundred ninety-four thousand, two hundred forty".