22729384699 has 4 divisors (see below), whose sum is σ = 25976439664. Its totient is φ = 19482329736.

The previous prime is 22729384697. The next prime is 22729384751. The reversal of 22729384699 is 99648392722.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22729384699 - 2¹ = 22729384697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22729384697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1623527472 + ... + 1623527485.

It is an arithmetic number, because the mean of its divisors is an integer number (6494109916).

Almost surely, 2^22729384699 is an apocalyptic number.

22729384699 is a deficient number, since it is larger than the sum of its proper divisors (3247054965).

22729384699 is an equidigital number, since it uses as much as digits as its factorization.

22729384699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3247054964.

The product of its digits is 23514624, while the sum is 61.

The spelling of 22729384699 in words is "twenty-two billion, seven hundred twenty-nine million, three hundred eighty-four thousand, six hundred ninety-nine".