2261563411263 has 32 divisors (see below), whose sum is σ = 3438918576576. Its totient is φ = 1309665343488.

The previous prime is 2261563411253. The next prime is 2261563411271. The reversal of 2261563411263 is 3621143651622.

It is not a de Polignac number, because 2261563411263 - 2⁵ = 2261563411231 is a prime.

It is a super-2 number, since 2×2261563411263² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261563411213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4154581 + ... + 4667297.

It is an arithmetic number, because the mean of its divisors is an integer number (107466205518).

Almost surely, 2^{2261563411263} is an apocalyptic number.

2261563411263 is a deficient number, since it is larger than the sum of its proper divisors (1177355165313).

2261563411263 is a wasteful number, since it uses less digits than its factorization.

2261563411263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519403.

The product of its digits is 311040, while the sum is 42.

The spelling of 2261563411263 in words is "two trillion, two hundred sixty-one billion, five hundred sixty-three million, four hundred eleven thousand, two hundred sixty-three".