745123321176513 has 16 divisors (see below), whose sum is σ = 1045788719177280. Its totient is φ = 470603482066944.

The previous prime is 745123321176499. The next prime is 745123321176581. The reversal of 745123321176513 is 315671123321547.

It is a happy number.

It is not a de Polignac number, because 745123321176513 - 2¹³ = 745123321168321 is a prime.

It is a super-2 number, since 2×745123321176513² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (745123321176583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28842645 + ... + 48188637.

It is an arithmetic number, because the mean of its divisors is an integer number (65361794948580).

Almost surely, 2^{745123321176513} is an apocalyptic number.

It is an amenable number.

745123321176513 is a deficient number, since it is larger than the sum of its proper divisors (300665398000767).

745123321176513 is a wasteful number, since it uses less digits than its factorization.

745123321176513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20021728.

The product of its digits is 3175200, while the sum is 51.

The spelling of 745123321176513 in words is "seven hundred forty-five trillion, one hundred twenty-three billion, three hundred twenty-one million, one hundred seventy-six thousand, five hundred thirteen".