2645984455753 has 2 divisors, whose sum is σ = 2645984455754. Its totient is φ = 2645984455752.

The previous prime is 2645984455739. The next prime is 2645984455757. The reversal of 2645984455753 is 3575544895462.

It is a happy number.

2645984455753 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1490247653049 + 1155736802704 = 1220757^2 + 1075052^2 .

It is a cyclic number.

It is not a de Polignac number, because 2645984455753 - 2⁹ = 2645984455241 is a prime.

It is a super-2 number, since 2×2645984455753² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2645984455757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322992227876 + 1322992227877.

It is an arithmetic number, because the mean of its divisors is an integer number (1322992227877).

Almost surely, 2^{2645984455753} is an apocalyptic number.

It is an amenable number.

2645984455753 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645984455753 is an equidigital number, since it uses as much as digits as its factorization.

2645984455753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760000, while the sum is 67.

The spelling of 2645984455753 in words is "two trillion, six hundred forty-five billion, nine hundred eighty-four million, four hundred fifty-five thousand, seven hundred fifty-three".