2428861993 has 2 divisors, whose sum is σ = 2428861994. Its totient is φ = 2428861992.

The previous prime is 2428861937. The next prime is 2428862021. The reversal of 2428861993 is 3991688242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1986306624 + 442555369 = 44568^2 + 21037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2428861993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2428861993.

It is not a weakly prime, because it can be changed into another prime (2428864993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1214430996 + 1214430997.

It is an arithmetic number, because the mean of its divisors is an integer number (1214430997).

Almost surely, 2^2428861993 is an apocalyptic number.

It is an amenable number.

2428861993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2428861993 is an equidigital number, since it uses as much as digits as its factorization.

2428861993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 52.

The square root of 2428861993 is about 49283.4860069780. The cubic root of 2428861993 is about 1344.2115200044.

The spelling of 2428861993 in words is "two billion, four hundred twenty-eight million, eight hundred sixty-one thousand, nine hundred ninety-three".