744054668261 has 2 divisors, whose sum is σ = 744054668262. Its totient is φ = 744054668260.

The previous prime is 744054668257. The next prime is 744054668321. The reversal of 744054668261 is 162866450447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 445731152161 + 298323516100 = 667631^2 + 546190^2 .

It is a cyclic number.

It is not a de Polignac number, because 744054668261 - 2² = 744054668257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (744054688261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372027334130 + 372027334131.

It is an arithmetic number, because the mean of its divisors is an integer number (372027334131).

Almost surely, 2^744054668261 is an apocalyptic number.

It is an amenable number.

744054668261 is a deficient number, since it is larger than the sum of its proper divisors (1).

744054668261 is an equidigital number, since it uses as much as digits as its factorization.

744054668261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7741440, while the sum is 53.

The spelling of 744054668261 in words is "seven hundred forty-four billion, fifty-four million, six hundred sixty-eight thousand, two hundred sixty-one".