678007164442 has 8 divisors (see below), whose sum is σ = 1017186383232. Its totient is φ = 338945036700.

The previous prime is 678007164413. The next prime is 678007164449. The reversal of 678007164442 is 244461700876.

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

It is not an unprimeable number, because it can be changed into a prime (678007164449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29258284 + ... + 29281447.

It is an arithmetic number, because the mean of its divisors is an integer number (127148297904).

Almost surely, 2^678007164442 is an apocalyptic number.

678007164442 is a deficient number, since it is larger than the sum of its proper divisors (339179218790).

678007164442 is a wasteful number, since it uses less digits than its factorization.

678007164442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58545524.

The product of its (nonzero) digits is 1806336, while the sum is 49.

The spelling of 678007164442 in words is "six hundred seventy-eight billion, seven million, one hundred sixty-four thousand, four hundred forty-two".