2261333235529 has 9 divisors (see below), whose sum is σ = 2266205395629. Its totient is φ = 2256471537420.

The previous prime is 2261333235527. The next prime is 2261333235533. The reversal of 2261333235529 is 9255323331622.

The square root of 2261333235529 is 1503773.

It is a perfect power (a square), and thus also a powerful number.

2261333235529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2261333235529 - 2¹ = 2261333235527 is a prime.

It is a super-2 number, since 2×2261333235529² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2261333235523) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 846622864 + ... + 846625534.

Almost surely, 2^{2261333235529} is an apocalyptic number.

2261333235529 is the 1503773-rd square number.

2261333235529 is the 751887-th centered octagonal number.

It is an amenable number.

2261333235529 is a deficient number, since it is larger than the sum of its proper divisors (4872160100).

2261333235529 is an frugal number, since it uses more digits than its factorization.

2261333235529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6468 (or 3234 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 46.

The spelling of 2261333235529 in words is "two trillion, two hundred sixty-one billion, three hundred thirty-three million, two hundred thirty-five thousand, five hundred twenty-nine".