745623404326547 has 2 divisors, whose sum is σ = 745623404326548. Its totient is φ = 745623404326546.

The previous prime is 745623404326513. The next prime is 745623404326553.

It is a happy number.

745623404326547 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 745623404326547 - 2⁸ = 745623404326291 is a prime.

It is a super-2 number, since 2×745623404326547² (a number of 31 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 745623404326547.

It is not a weakly prime, because it can be changed into another prime (745623404326147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372811702163273 + 372811702163274.

It is an arithmetic number, because the mean of its divisors is an integer number (372811702163274).

Almost surely, 2^{745623404326547} is an apocalyptic number.

745623404326547 is a deficient number, since it is larger than the sum of its proper divisors (1).

745623404326547 is an equidigital number, since it uses as much as digits as its factorization.

745623404326547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 406425600, while the sum is 62.

It can be divided in two parts, 74562340 and 4326547, that added together give a palindrome (78888887).

The spelling of 745623404326547 in words is "seven hundred forty-five trillion, six hundred twenty-three billion, four hundred four million, three hundred twenty-six thousand, five hundred forty-seven".