1678823061 has 8 divisors (see below), whose sum is σ = 2335753920. Its totient is φ = 1070553792.

The previous prime is 1678823057. The next prime is 1678823077. The reversal of 1678823061 is 1603288761.

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

It is not a de Polignac number, because 1678823061 - 2² = 1678823057 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1678823051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12165316 + ... + 12165453.

It is an arithmetic number, because the mean of its divisors is an integer number (291969240).

Almost surely, 2^1678823061 is an apocalyptic number.

It is an amenable number.

1678823061 is a deficient number, since it is larger than the sum of its proper divisors (656930859).

1678823061 is a wasteful number, since it uses less digits than its factorization.

1678823061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24330795.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 1678823061 is about 40973.4433627441. The cubic root of 1678823061 is about 1188.5067211950.

The spelling of 1678823061 in words is "one billion, six hundred seventy-eight million, eight hundred twenty-three thousand, sixty-one".