1745122720253 has 16 divisors (see below), whose sum is σ = 1935304513920. Its totient is φ = 1560305913600.

The previous prime is 1745122720249. The next prime is 1745122720291. The reversal of 1745122720253 is 3520272215471.

It is a cyclic number.

It is not a de Polignac number, because 1745122720253 - 2² = 1745122720249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1745122720253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1745122728253) 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, 2412200 + ... + 3051057.

It is an arithmetic number, because the mean of its divisors is an integer number (120956532120).

Almost surely, 2^{1745122720253} is an apocalyptic number.

It is an amenable number.

1745122720253 is a deficient number, since it is larger than the sum of its proper divisors (190181793667).

1745122720253 is a wasteful number, since it uses less digits than its factorization.

1745122720253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5463748.

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 1745122720253 in words is "one trillion, seven hundred forty-five billion, one hundred twenty-two million, seven hundred twenty thousand, two hundred fifty-three".