2685395173442 has 16 divisors (see below), whose sum is σ = 4047054013464. Its totient is φ = 1336383360000.

The previous prime is 2685395173379. The next prime is 2685395173481. The reversal of 2685395173442 is 2443715935862.

It can be written as a sum of positive squares in 4 ways, for example, as 2631399821281 + 53995352161 = 1622159^2 + 232369^2 .

It is a super-2 number, since 2×2685395173442² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678659 + ... + 2414822.

Almost surely, 2^{2685395173442} is an apocalyptic number.

2685395173442 is a deficient number, since it is larger than the sum of its proper divisors (1361658840022).

2685395173442 is a wasteful number, since it uses less digits than its factorization.

2685395173442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095525.

The product of its digits is 43545600, while the sum is 59.

The spelling of 2685395173442 in words is "two trillion, six hundred eighty-five billion, three hundred ninety-five million, one hundred seventy-three thousand, four hundred forty-two".