745515544072506 has 8 divisors (see below), whose sum is σ = 1491031088145024. Its totient is φ = 248505181357500.

The previous prime is 745515544072501. The next prime is 745515544072567. The reversal of 745515544072506 is 605270445515547.

745515544072506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

745515544072506 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 745515544072506.

It is not an unprimeable number, because it can be changed into a prime (745515544072501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62126295339370 + ... + 62126295339381.

It is an arithmetic number, because the mean of its divisors is an integer number (186378886018128).

Almost surely, 2^{745515544072506} is an apocalyptic number.

745515544072506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745515544072506 is a wasteful number, since it uses less digits than its factorization.

745515544072506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124252590678756.

The product of its (nonzero) digits is 117600000, while the sum is 60.

The spelling of 745515544072506 in words is "seven hundred forty-five trillion, five hundred fifteen billion, five hundred forty-four million, seventy-two thousand, five hundred six".