745253656227 has 24 divisors (see below), whose sum is σ = 1084248391200. Its totient is φ = 493253107200.

The previous prime is 745253656219. The next prime is 745253656229. The reversal of 745253656227 is 722656352547.

745253656227 is a `hidden beast` number, since 7 + 4 + 5 + 2 + 5 + 3 + 6 + 5 + 622 + 7 = 666.

It is not a de Polignac number, because 745253656227 - 2³ = 745253656219 is a prime.

It is a super-2 number, since 2×745253656227² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (745253656229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2144649 + ... + 2467797.

It is an arithmetic number, because the mean of its divisors is an integer number (45177016300).

Almost surely, 2^745253656227 is an apocalyptic number.

745253656227 is a deficient number, since it is larger than the sum of its proper divisors (338994734973).

745253656227 is a wasteful number, since it uses less digits than its factorization.

745253656227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325003 (or 325000 counting only the distinct ones).

The product of its digits is 21168000, while the sum is 54.

The spelling of 745253656227 in words is "seven hundred forty-five billion, two hundred fifty-three million, six hundred fifty-six thousand, two hundred twenty-seven".