2026248781 has 2 divisors, whose sum is σ = 2026248782. Its totient is φ = 2026248780.

The previous prime is 2026248703. The next prime is 2026248799. The reversal of 2026248781 is 1878426202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1863303556 + 162945225 = 43166^2 + 12765^2 .

It is a cyclic number.

It is not a de Polignac number, because 2026248781 - 2²⁵ = 1992694349 is a prime.

It is a super-2 number, since 2×2026248781² = 8211368245007971922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2026248701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1013124390 + 1013124391.

It is an arithmetic number, because the mean of its divisors is an integer number (1013124391).

Almost surely, 2^2026248781 is an apocalyptic number.

It is an amenable number.

2026248781 is a deficient number, since it is larger than the sum of its proper divisors (1).

2026248781 is an equidigital number, since it uses as much as digits as its factorization.

2026248781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 2026248781 is about 45013.8732059351. The cubic root of 2026248781 is about 1265.4090093729.

The spelling of 2026248781 in words is "two billion, twenty-six million, two hundred forty-eight thousand, seven hundred eighty-one".