745920123193 has 24 divisors (see below), whose sum is σ = 891061202304. Its totient is φ = 622299132000.

The previous prime is 745920123191. The next prime is 745920123197. The reversal of 745920123193 is 391321029547.

It is a happy number.

It is not a de Polignac number, because 745920123193 - 2¹ = 745920123191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745920123191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 477883 + ... + 1311568.

It is an arithmetic number, because the mean of its divisors is an integer number (37127550096).

Almost surely, 2^745920123193 is an apocalyptic number.

It is an amenable number.

745920123193 is a deficient number, since it is larger than the sum of its proper divisors (145141079111).

745920123193 is a wasteful number, since it uses less digits than its factorization.

745920123193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789693 (or 1789686 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 745920123193 in words is "seven hundred forty-five billion, nine hundred twenty million, one hundred twenty-three thousand, one hundred ninety-three".