2261938751 has 2 divisors, whose sum is σ = 2261938752. Its totient is φ = 2261938750.

The previous prime is 2261938747. The next prime is 2261938787. The reversal of 2261938751 is 1578391622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2261938751 - 2² = 2261938747 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2261938711) 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, 1130969375 + 1130969376.

It is an arithmetic number, because the mean of its divisors is an integer number (1130969376).

Almost surely, 2^2261938751 is an apocalyptic number.

2261938751 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261938751 is an equidigital number, since it uses as much as digits as its factorization.

2261938751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 2261938751 is about 47559.8438916698. The cubic root of 2261938751 is about 1312.6842675950.

The spelling of 2261938751 in words is "two billion, two hundred sixty-one million, nine hundred thirty-eight thousand, seven hundred fifty-one".