20240279893 has 2 divisors, whose sum is σ = 20240279894. Its totient is φ = 20240279892.

The previous prime is 20240279881. The next prime is 20240280037. The reversal of 20240279893 is 39897204202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13335168484 + 6905111409 = 115478^2 + 83097^2 .

It is a cyclic number.

It is not a de Polignac number, because 20240279893 - 2⁵ = 20240279861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20240279803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10120139946 + 10120139947.

It is an arithmetic number, because the mean of its divisors is an integer number (10120139947).

Almost surely, 2^20240279893 is an apocalyptic number.

It is an amenable number.

20240279893 is a deficient number, since it is larger than the sum of its proper divisors (1).

20240279893 is an equidigital number, since it uses as much as digits as its factorization.

20240279893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 20240279893 in words is "twenty billion, two hundred forty million, two hundred seventy-nine thousand, eight hundred ninety-three".