2145464454517 has 2 divisors, whose sum is σ = 2145464454518. Its totient is φ = 2145464454516.

The previous prime is 2145464454503. The next prime is 2145464454619. The reversal of 2145464454517 is 7154544645412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2135263252516 + 10201202001 = 1461254^2 + 101001^2 .

It is a cyclic number.

It is not a de Polignac number, because 2145464454517 - 2¹⁹ = 2145463930229 is a prime.

It is a super-3 number, since 3×2145464454517³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145464454317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072732227258 + 1072732227259.

It is an arithmetic number, because the mean of its divisors is an integer number (1072732227259).

Almost surely, 2^{2145464454517} is an apocalyptic number.

It is an amenable number.

2145464454517 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145464454517 is an equidigital number, since it uses as much as digits as its factorization.

2145464454517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752000, while the sum is 52.

The spelling of 2145464454517 in words is "two trillion, one hundred forty-five billion, four hundred sixty-four million, four hundred fifty-four thousand, five hundred seventeen".