22941693729 has 12 divisors (see below), whose sum is σ = 33145784100. Its totient is φ = 15290870784.

The previous prime is 22941693667. The next prime is 22941693739. The reversal of 22941693729 is 92739614922.

22941693729 is a `hidden beast` number, since 22 + 94 + 169 + 372 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16576047504 + 6365646225 = 128748^2 + 79785^2 .

It is not a de Polignac number, because 22941693729 - 2¹¹ = 22941691681 is a prime.

It is a super-2 number, since 2×22941693729² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22941693739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258564 + ... + 335765.

It is an arithmetic number, because the mean of its divisors is an integer number (2762148675).

Almost surely, 2^22941693729 is an apocalyptic number.

It is an amenable number.

22941693729 is a deficient number, since it is larger than the sum of its proper divisors (10204090371).

22941693729 is a wasteful number, since it uses less digits than its factorization.

22941693729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598624 (or 598621 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The spelling of 22941693729 in words is "twenty-two billion, nine hundred forty-one million, six hundred ninety-three thousand, seven hundred twenty-nine".