745248363842547 has 12 divisors (see below), whose sum is σ = 1080973916873760. Its totient is φ = 494753446566288.

The previous prime is 745248363842491. The next prime is 745248363842573.

745248363842547 is a `hidden beast` number, since 7 + 4 + 5 + 2 + 4 + 8 + 3 + 6 + 38 + 42 + 547 = 666.

745248363842547 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 745248363842547 - 2⁷ = 745248363842419 is a prime.

It is a super-2 number, since 2×745248363842547² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (745248363892547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173232997348 + ... + 173233001649.

It is an arithmetic number, because the mean of its divisors is an integer number (90081159739480).

Almost surely, 2^{745248363842547} is an apocalyptic number.

745248363842547 is a deficient number, since it is larger than the sum of its proper divisors (335725553031213).

745248363842547 is a wasteful number, since it uses less digits than its factorization.

745248363842547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346465999242 (or 346465999239 counting only the distinct ones).

The product of its digits is 4335206400, while the sum is 72.

The spelling of 745248363842547 in words is "seven hundred forty-five trillion, two hundred forty-eight billion, three hundred sixty-three million, eight hundred forty-two thousand, five hundred forty-seven".