2945985659 has 6 divisors (see below), whose sum is σ = 3079641516. Its totient is φ = 2817898820.

The previous prime is 2945985629. The next prime is 2945985661. The reversal of 2945985659 is 9565895492.

It is a de Polignac number, because none of the positive numbers 2^k-2945985659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2945985629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2783957 + ... + 2785014.

It is an arithmetic number, because the mean of its divisors is an integer number (513273586).

Almost surely, 2^2945985659 is an apocalyptic number.

2945985659 is a deficient number, since it is larger than the sum of its proper divisors (133655857).

2945985659 is an equidigital number, since it uses as much as digits as its factorization.

2945985659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5569017 (or 5568994 counting only the distinct ones).

The product of its digits is 34992000, while the sum is 62.

The square root of 2945985659 is about 54276.9348710850. The cubic root of 2945985659 is about 1433.5413002308.

The spelling of 2945985659 in words is "two billion, nine hundred forty-five million, nine hundred eighty-five thousand, six hundred fifty-nine".