20462917724453 has 4 divisors (see below), whose sum is σ = 20463884939340. Its totient is φ = 20461950509568.

The previous prime is 20462917724423. The next prime is 20462917724461. The reversal of 20462917724453 is 35442771926402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3524244026209 + 16938673698244 = 1877297^2 + 4115662^2 .

It is a cyclic number.

It is not a de Polignac number, because 20462917724453 - 2¹⁰ = 20462917723429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20462917724423) 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, 483575708 + ... + 483618021.

It is an arithmetic number, because the mean of its divisors is an integer number (5115971234835).

Almost surely, 2^{20462917724453} is an apocalyptic number.

It is an amenable number.

20462917724453 is a deficient number, since it is larger than the sum of its proper divisors (967214887).

20462917724453 is an equidigital number, since it uses as much as digits as its factorization.

20462917724453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967214886.

The product of its (nonzero) digits is 20321280, while the sum is 56.

The spelling of 20462917724453 in words is "twenty trillion, four hundred sixty-two billion, nine hundred seventeen million, seven hundred twenty-four thousand, four hundred fifty-three".