745475552518 has 4 divisors (see below), whose sum is σ = 1118213328780. Its totient is φ = 372737776258.

The previous prime is 745475552473. The next prime is 745475552519. The reversal of 745475552518 is 815255574547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 815255574547 = 219953 ⋅3706499.

It is a super-2 number, since 2×745475552518² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745475552519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186368888128 + ... + 186368888131.

It is an arithmetic number, because the mean of its divisors is an integer number (279553332195).

Almost surely, 2^745475552518 is an apocalyptic number.

745475552518 is a deficient number, since it is larger than the sum of its proper divisors (372737776262).

745475552518 is a wasteful number, since it uses less digits than its factorization.

745475552518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372737776261.

The product of its digits is 39200000, while the sum is 58.

The spelling of 745475552518 in words is "seven hundred forty-five billion, four hundred seventy-five million, five hundred fifty-two thousand, five hundred eighteen".