263620460853 has 6 divisors (see below), whose sum is σ = 380785110134. Its totient is φ = 175746973896.

The previous prime is 263620460837. The next prime is 263620460863. The reversal of 263620460853 is 358064026362.

It is a happy number.

263620460853 is a `hidden beast` number, since 2 + 6 + 36 + 2 + 0 + 4 + 608 + 5 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 263597015889 + 23444964 = 513417^2 + 4842^2 .

It is not a de Polignac number, because 263620460853 - 2⁴ = 263620460837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263620460799 and 263620460808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263620460863) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14645581150 + ... + 14645581167.

Almost surely, 2^263620460853 is an apocalyptic number.

It is an amenable number.

263620460853 is a deficient number, since it is larger than the sum of its proper divisors (117164649281).

263620460853 is a wasteful number, since it uses less digits than its factorization.

263620460853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29291162323 (or 29291162320 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 263620460853 in words is "two hundred sixty-three billion, six hundred twenty million, four hundred sixty thousand, eight hundred fifty-three".