3178311345 has 64 divisors (see below), whose sum is σ = 6189281280. Its totient is φ = 1534680000.

The previous prime is 3178311343. The next prime is 3178311377. The reversal of 3178311345 is 5431138713.

It is not a de Polignac number, because 3178311345 - 2¹ = 3178311343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3178311343) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 368472 + ... + 376998.

It is an arithmetic number, because the mean of its divisors is an integer number (96707520).

Almost surely, 2^3178311345 is an apocalyptic number.

It is an amenable number.

3178311345 is a deficient number, since it is larger than the sum of its proper divisors (3010969935).

3178311345 is a wasteful number, since it uses less digits than its factorization.

3178311345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8803 (or 8797 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 3178311345 is about 56376.5141260082. The cubic root of 3178311345 is about 1470.2758124700.

The spelling of 3178311345 in words is "three billion, one hundred seventy-eight million, three hundred eleven thousand, three hundred forty-five".