2949620813 has 2 divisors, whose sum is σ = 2949620814. Its totient is φ = 2949620812.

The previous prime is 2949620803. The next prime is 2949620851. The reversal of 2949620813 is 3180269492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1811098249 + 1138522564 = 42557^2 + 33742^2 .

It is a cyclic number.

It is not a de Polignac number, because 2949620813 - 2¹⁴ = 2949604429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2949620803) 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, 1474810406 + 1474810407.

It is an arithmetic number, because the mean of its divisors is an integer number (1474810407).

Almost surely, 2^2949620813 is an apocalyptic number.

It is an amenable number.

2949620813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2949620813 is an equidigital number, since it uses as much as digits as its factorization.

2949620813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 2949620813 is about 54310.4116445457. The cubic root of 2949620813 is about 1434.1306900038.

The spelling of 2949620813 in words is "two billion, nine hundred forty-nine million, six hundred twenty thousand, eight hundred thirteen".