744705139331 has 2 divisors, whose sum is σ = 744705139332. Its totient is φ = 744705139330.

The previous prime is 744705139253. The next prime is 744705139393. The reversal of 744705139331 is 133931507447.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-744705139331 is a prime.

It is a super-2 number, since 2×744705139331² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (744705739331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372352569665 + 372352569666.

It is an arithmetic number, because the mean of its divisors is an integer number (372352569666).

Almost surely, 2^744705139331 is an apocalyptic number.

744705139331 is a deficient number, since it is larger than the sum of its proper divisors (1).

744705139331 is an equidigital number, since it uses as much as digits as its factorization.

744705139331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 47.

The spelling of 744705139331 in words is "seven hundred forty-four billion, seven hundred five million, one hundred thirty-nine thousand, three hundred thirty-one".