22744542739 has 4 divisors (see below), whose sum is σ = 22757258080. Its totient is φ = 22731827400.

The previous prime is 22744542721. The next prime is 22744542763. The reversal of 22744542739 is 93724544722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93724544722 = 2 ⋅46862272361.

It is a cyclic number.

It is not a de Polignac number, because 22744542739 - 2¹⁷ = 22744411667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22744542692 and 22744542701.

It is not an unprimeable number, because it can be changed into a prime (22744542839) 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, 6354987 + ... + 6358564.

It is an arithmetic number, because the mean of its divisors is an integer number (5689314520).

Almost surely, 2^22744542739 is an apocalyptic number.

22744542739 is a deficient number, since it is larger than the sum of its proper divisors (12715341).

22744542739 is a wasteful number, since it uses less digits than its factorization.

22744542739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12715340.

The product of its digits is 3386880, while the sum is 49.

The spelling of 22744542739 in words is "twenty-two billion, seven hundred forty-four million, five hundred forty-two thousand, seven hundred thirty-nine".