1686678470953 has 8 divisors (see below), whose sum is σ = 1927643350208. Its totient is φ = 1445716294704.

The previous prime is 1686678470933. The next prime is 1686678470969. The reversal of 1686678470953 is 3590748766861.

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

It is a cyclic number.

It is not a de Polignac number, because 1686678470953 - 2⁵ = 1686678470921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1686678470933) 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 7 ways as a sum of consecutive naturals, for example, 909250 + ... + 2049412.

It is an arithmetic number, because the mean of its divisors is an integer number (240955418776).

Almost surely, 2^{1686678470953} is an apocalyptic number.

It is an amenable number.

1686678470953 is a deficient number, since it is larger than the sum of its proper divisors (240964879255).

1686678470953 is a wasteful number, since it uses less digits than its factorization.

1686678470953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351503.

The product of its (nonzero) digits is 365783040, while the sum is 70.

The spelling of 1686678470953 in words is "one trillion, six hundred eighty-six billion, six hundred seventy-eight million, four hundred seventy thousand, nine hundred fifty-three".