678601630142 has 4 divisors (see below), whose sum is σ = 1017902445216. Its totient is φ = 339300815070.

The previous prime is 678601630141. The next prime is 678601630171. The reversal of 678601630142 is 241036106876.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 678601630093 and 678601630102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678601630141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169650407534 + ... + 169650407537.

It is an arithmetic number, because the mean of its divisors is an integer number (254475611304).

Almost surely, 2^678601630142 is an apocalyptic number.

678601630142 is a deficient number, since it is larger than the sum of its proper divisors (339300815074).

678601630142 is a wasteful number, since it uses less digits than its factorization.

678601630142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339300815073.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 678601630142 in words is "six hundred seventy-eight billion, six hundred one million, six hundred thirty thousand, one hundred forty-two".