6987354345 has 24 divisors (see below), whose sum is σ = 12637999296. Its totient is φ = 3564562848.

The previous prime is 6987354343. The next prime is 6987354371. The reversal of 6987354345 is 5434537896.

6987354345 is a `hidden beast` number, since 6 + 98 + 7 + 3 + 543 + 4 + 5 = 666.

It is not a de Polignac number, because 6987354345 - 2¹ = 6987354343 is a prime.

It is a super-3 number, since 3×6987354345³ (a number of 31 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6987354291 and 6987354300.

It is not an unprimeable number, because it can be changed into a prime (6987354343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3374499 + ... + 3376568.

It is an arithmetic number, because the mean of its divisors is an integer number (526583304).

Almost surely, 2^6987354345 is an apocalyptic number.

It is an amenable number.

6987354345 is a deficient number, since it is larger than the sum of its proper divisors (5650644951).

6987354345 is a wasteful number, since it uses less digits than its factorization.

6987354345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6751101 (or 6751098 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The square root of 6987354345 is about 83590.3962486122. The cubic root of 6987354345 is about 1911.7785709074.

The spelling of 6987354345 in words is "six billion, nine hundred eighty-seven million, three hundred fifty-four thousand, three hundred forty-five".