22711345947 has 24 divisors (see below), whose sum is σ = 34850066160. Its totient is φ = 14771600640.

The previous prime is 22711345919. The next prime is 22711345999. The reversal of 22711345947 is 74954311722.

22711345947 is a `hidden beast` number, since 2 + 27 + 1 + 1 + 34 + 594 + 7 = 666.

It is not a de Polignac number, because 22711345947 - 2¹¹ = 22711343899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22711340947) 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, 1129822 + ... + 1149747.

It is an arithmetic number, because the mean of its divisors is an integer number (1452086090).

Almost surely, 2^22711345947 is an apocalyptic number.

22711345947 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22711345947 is a deficient number, since it is larger than the sum of its proper divisors (12138720213).

22711345947 is an equidigital number, since it uses as much as digits as its factorization.

22711345947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279625 (or 2279613 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

It can be divided in two parts, 2271134 and 5947, that added together give a square (2277081 = 1509²).

The spelling of 22711345947 in words is "twenty-two billion, seven hundred eleven million, three hundred forty-five thousand, nine hundred forty-seven".