2266970781 has 24 divisors (see below), whose sum is σ = 3181298400. Its totient is φ = 1435752736.

The previous prime is 2266970777. The next prime is 2266970789. The reversal of 2266970781 is 1870796622.

It is not a de Polignac number, because 2266970781 - 2² = 2266970777 is a prime.

It is a super-2 number, since 2×2266970781² = 10278313043815499922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2266970781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2266970789) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 231670 + ... + 241256.

It is an arithmetic number, because the mean of its divisors is an integer number (132554100).

Almost surely, 2^2266970781 is an apocalyptic number.

It is an amenable number.

2266970781 is a deficient number, since it is larger than the sum of its proper divisors (914327619).

2266970781 is a wasteful number, since it uses less digits than its factorization.

2266970781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9785 (or 9762 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 2266970781 is about 47612.7165891634. The cubic root of 2266970781 is about 1313.6569692012.

The spelling of 2266970781 in words is "two billion, two hundred sixty-six million, nine hundred seventy thousand, seven hundred eighty-one".