745372273507 has 2 divisors, whose sum is σ = 745372273508. Its totient is φ = 745372273506.

The previous prime is 745372273463. The next prime is 745372273553. The reversal of 745372273507 is 705372273547.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 745372273507 - 2²³ = 745363884899 is a prime.

It is a super-2 number, since 2×745372273507² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (745372273567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372686136753 + 372686136754.

It is an arithmetic number, because the mean of its divisors is an integer number (372686136754).

Almost surely, 2^745372273507 is an apocalyptic number.

745372273507 is a deficient number, since it is larger than the sum of its proper divisors (1).

745372273507 is an equidigital number, since it uses as much as digits as its factorization.

745372273507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8643600, while the sum is 52.

The spelling of 745372273507 in words is "seven hundred forty-five billion, three hundred seventy-two million, two hundred seventy-three thousand, five hundred seven".