2620866263063 has 4 divisors (see below), whose sum is σ = 2620869806928. Its totient is φ = 2620862719200.

The previous prime is 2620866263003. The next prime is 2620866263117. The reversal of 2620866263063 is 3603626680262.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2620866263063 - 2¹⁴ = 2620866246679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620866263003) 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, 194531 + ... + 2297732.

It is an arithmetic number, because the mean of its divisors is an integer number (655217451732).

Almost surely, 2^{2620866263063} is an apocalyptic number.

2620866263063 is a deficient number, since it is larger than the sum of its proper divisors (3543865).

2620866263063 is a wasteful number, since it uses less digits than its factorization.

2620866263063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543864.

The product of its (nonzero) digits is 4478976, while the sum is 50.

The spelling of 2620866263063 in words is "two trillion, six hundred twenty billion, eight hundred sixty-six million, two hundred sixty-three thousand, sixty-three".