745570811533 has 2 divisors, whose sum is σ = 745570811534. Its totient is φ = 745570811532.

The previous prime is 745570811477. The next prime is 745570811549. The reversal of 745570811533 is 335118075547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 737018816004 + 8551995529 = 858498^2 + 92477^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745570811533 is a prime.

It is a super-3 number, since 3×745570811533³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745570811933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372785405766 + 372785405767.

It is an arithmetic number, because the mean of its divisors is an integer number (372785405767).

Almost surely, 2^745570811533 is an apocalyptic number.

It is an amenable number.

745570811533 is a deficient number, since it is larger than the sum of its proper divisors (1).

745570811533 is an equidigital number, since it uses as much as digits as its factorization.

745570811533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764000, while the sum is 49.

The spelling of 745570811533 in words is "seven hundred forty-five billion, five hundred seventy million, eight hundred eleven thousand, five hundred thirty-three".