2978381293 has 2 divisors, whose sum is σ = 2978381294. Its totient is φ = 2978381292.

The previous prime is 2978381279. The next prime is 2978381299. The reversal of 2978381293 is 3921838792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2932980649 + 45400644 = 54157^2 + 6738^2 .

It is a cyclic number.

It is not a de Polignac number, because 2978381293 - 2⁹ = 2978380781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2978381293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2978381299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489190646 + 1489190647.

It is an arithmetic number, because the mean of its divisors is an integer number (1489190647).

Almost surely, 2^2978381293 is an apocalyptic number.

It is an amenable number.

2978381293 is a deficient number, since it is larger than the sum of its proper divisors (1).

2978381293 is an equidigital number, since it uses as much as digits as its factorization.

2978381293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 52.

The square root of 2978381293 is about 54574.5480329430. The cubic root of 2978381293 is about 1438.7768183129.

The spelling of 2978381293 in words is "two billion, nine hundred seventy-eight million, three hundred eighty-one thousand, two hundred ninety-three".