816351081846674 has 16 divisors (see below), whose sum is σ = 1336745575414656. Its totient is φ = 370819131740400.

The previous prime is 816351081846613. The next prime is 816351081846683. The reversal of 816351081846674 is 476648180153618.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12477057857 + ... + 12477123284.

It is an arithmetic number, because the mean of its divisors is an integer number (83546598463416).

Almost surely, 2^{816351081846674} is an apocalyptic number.

816351081846674 is a deficient number, since it is larger than the sum of its proper divisors (520394493567982).

816351081846674 is a wasteful number, since it uses less digits than its factorization.

816351081846674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24954182641.

The product of its (nonzero) digits is 185794560, while the sum is 68.

The spelling of 816351081846674 in words is "eight hundred sixteen trillion, three hundred fifty-one billion, eighty-one million, eight hundred forty-six thousand, six hundred seventy-four".