678397628134 has 8 divisors (see below), whose sum is σ = 1017600565320. Its totient is φ = 339197439696.

The previous prime is 678397628131. The next prime is 678397628179. The reversal of 678397628134 is 431826793876.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678397628131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118962 + ... + 1170874.

It is an arithmetic number, because the mean of its divisors is an integer number (127200070665).

Almost surely, 2^678397628134 is an apocalyptic number.

678397628134 is a deficient number, since it is larger than the sum of its proper divisors (339202937186).

678397628134 is a wasteful number, since it uses less digits than its factorization.

678397628134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374374.

The product of its digits is 73156608, while the sum is 64.

The spelling of 678397628134 in words is "six hundred seventy-eight billion, three hundred ninety-seven million, six hundred twenty-eight thousand, one hundred thirty-four".