745818356149 has 2 divisors, whose sum is σ = 745818356150. Its totient is φ = 745818356148.

The previous prime is 745818356147. The next prime is 745818356189. The reversal of 745818356149 is 941653818547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 726957453924 + 18860902225 = 852618^2 + 137335^2 .

It is a cyclic number.

It is not a de Polignac number, because 745818356149 - 2¹ = 745818356147 is a prime.

It is a super-2 number, since 2×745818356149² (a number of 25 digits) contains 22 as substring.

Together with 745818356147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745818356147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372909178074 + 372909178075.

It is an arithmetic number, because the mean of its divisors is an integer number (372909178075).

Almost surely, 2^745818356149 is an apocalyptic number.

It is an amenable number.

745818356149 is a deficient number, since it is larger than the sum of its proper divisors (1).

745818356149 is an equidigital number, since it uses as much as digits as its factorization.

745818356149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29030400, while the sum is 61.

The spelling of 745818356149 in words is "seven hundred forty-five billion, eight hundred eighteen million, three hundred fifty-six thousand, one hundred forty-nine".