2050636643453 has 4 divisors (see below), whose sum is σ = 2171262328380. Its totient is φ = 1930010958528.

The previous prime is 2050636643431. The next prime is 2050636643479. The reversal of 2050636643453 is 3543466360502.

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 1259002934809 + 791633708644 = 1122053^2 + 889738^2 .

It is not a de Polignac number, because 2050636643453 - 2¹⁰ = 2050636642429 is a prime.

It is a super-2 number, since 2×2050636643453² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2050636643398 and 2050636643407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2050636643483) 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, 60312842438 + ... + 60312842471.

It is an arithmetic number, because the mean of its divisors is an integer number (542815582095).

Almost surely, 2^{2050636643453} is an apocalyptic number.

It is an amenable number.

2050636643453 is a deficient number, since it is larger than the sum of its proper divisors (120625684927).

2050636643453 is a wasteful number, since it uses less digits than its factorization.

2050636643453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120625684926.

The product of its (nonzero) digits is 4665600, while the sum is 47.

The spelling of 2050636643453 in words is "two trillion, fifty billion, six hundred thirty-six million, six hundred forty-three thousand, four hundred fifty-three".