6943945145 has 8 divisors (see below), whose sum is σ = 8354722560. Its totient is φ = 5540497200.

The previous prime is 6943945139. The next prime is 6943945153. The reversal of 6943945145 is 5415493496.

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

It is not a de Polignac number, because 6943945145 - 2¹⁸ = 6943683001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6943945093 and 6943945102.

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, 1830281 + ... + 1834070.

It is an arithmetic number, because the mean of its divisors is an integer number (1044340320).

Almost surely, 2^6943945145 is an apocalyptic number.

It is an amenable number.

6943945145 is a deficient number, since it is larger than the sum of its proper divisors (1410777415).

6943945145 is a wasteful number, since it uses less digits than its factorization.

6943945145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664735.

The product of its digits is 2332800, while the sum is 50.

The square root of 6943945145 is about 83330.3374828159. The cubic root of 6943945145 is about 1907.8113454115.

The spelling of 6943945145 in words is "six billion, nine hundred forty-three million, nine hundred forty-five thousand, one hundred forty-five".