3005002778 has 8 divisors (see below), whose sum is σ = 4507898772. Its totient is φ = 1502369856.

The previous prime is 3005002771. The next prime is 3005002787. The reversal of 3005002778 is 8772005003.

It can be written as a sum of positive squares in 2 ways, for example, as 2112965089 + 892037689 = 45967^2 + 29867^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3005002771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34175 + ... + 84722.

Almost surely, 2^3005002778 is an apocalyptic number.

3005002778 is a deficient number, since it is larger than the sum of its proper divisors (1502895994).

3005002778 is a wasteful number, since it uses less digits than its factorization.

3005002778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131536.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 3005002778 is about 54817.9056331050. The cubic root of 3005002778 is about 1443.0508200219.

The spelling of 3005002778 in words is "three billion, five million, two thousand, seven hundred seventy-eight".