745950721559 has 2 divisors, whose sum is σ = 745950721560. Its totient is φ = 745950721558.

The previous prime is 745950721543. The next prime is 745950721577. The reversal of 745950721559 is 955127059547.

745950721559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 745950721559 - 2⁴ = 745950721543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 745950721498 and 745950721507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745950721589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372975360779 + 372975360780.

It is an arithmetic number, because the mean of its divisors is an integer number (372975360780).

Almost surely, 2^745950721559 is an apocalyptic number.

745950721559 is a deficient number, since it is larger than the sum of its proper divisors (1).

745950721559 is an equidigital number, since it uses as much as digits as its factorization.

745950721559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19845000, while the sum is 59.

The spelling of 745950721559 in words is "seven hundred forty-five billion, nine hundred fifty million, seven hundred twenty-one thousand, five hundred fifty-nine".