678137852720350 has 48 divisors (see below), whose sum is σ = 1448424581143680. Its totient is φ = 233616867919200.

The previous prime is 678137852720327. The next prime is 678137852720353. The reversal of 678137852720350 is 53027258731876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678137852720353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32446776762 + ... + 32446797661.

It is an arithmetic number, because the mean of its divisors is an integer number (30175512107160).

Almost surely, 2^{678137852720350} is an apocalyptic number.

678137852720350 is an abundant number, since it is smaller than the sum of its proper divisors (770286728423330).

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

678137852720350 is a wasteful number, since it uses less digits than its factorization.

678137852720350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64893574465 (or 64893574460 counting only the distinct ones).

The product of its (nonzero) digits is 118540800, while the sum is 64.

The spelling of 678137852720350 in words is "six hundred seventy-eight trillion, one hundred thirty-seven billion, eight hundred fifty-two million, seven hundred twenty thousand, three hundred fifty".