745557585755547 has 8 divisors (see below), whose sum is σ = 1015227350816256. Its totient is φ = 486463105599272.

The previous prime is 745557585755513. The next prime is 745557585755579.

745557585755547 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 745557585755547 - 2¹⁹ = 745557585231259 is a prime.

It is a super-2 number, since 2×745557585755547² (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 745557585755547.

It is not an unprimeable number, because it can be changed into a prime (745557585755597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2643821225943 + ... + 2643821226224.

It is an arithmetic number, because the mean of its divisors is an integer number (126903418852032).

Almost surely, 2^{745557585755547} is an apocalyptic number.

745557585755547 is a deficient number, since it is larger than the sum of its proper divisors (269669765060709).

745557585755547 is a wasteful number, since it uses less digits than its factorization.

745557585755547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287642452217.

The product of its digits is 120050000000, while the sum is 84.

The spelling of 745557585755547 in words is "seven hundred forty-five trillion, five hundred fifty-seven billion, five hundred eighty-five million, seven hundred fifty-five thousand, five hundred forty-seven".