2152806463453 has 4 divisors (see below), whose sum is σ = 2160578328220. Its totient is φ = 2145034598688.

The previous prime is 2152806463439. The next prime is 2152806463463. The reversal of 2152806463453 is 3543646082512.

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 1440964961604 + 711841501849 = 1200402^2 + 843707^2 .

It is a cyclic number.

It is not a de Polignac number, because 2152806463453 - 2⁵ = 2152806463421 is a prime.

It is a super-3 number, since 3×2152806463453³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2152806463397 and 2152806463406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152806463463) 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, 3885931968 + ... + 3885932521.

It is an arithmetic number, because the mean of its divisors is an integer number (540144582055).

Almost surely, 2^{2152806463453} is an apocalyptic number.

It is an amenable number.

2152806463453 is a deficient number, since it is larger than the sum of its proper divisors (7771864767).

2152806463453 is an equidigital number, since it uses as much as digits as its factorization.

2152806463453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7771864766.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 2152806463453 in words is "two trillion, one hundred fifty-two billion, eight hundred six million, four hundred sixty-three thousand, four hundred fifty-three".