22437734749 has 4 divisors (see below), whose sum is σ = 22553992636. Its totient is φ = 22321476864.

The previous prime is 22437734747. The next prime is 22437734773. The reversal of 22437734749 is 94743773422.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15355670724 + 7082064025 = 123918^2 + 84155^2 .

It is a cyclic number.

It is not a de Polignac number, because 22437734749 - 2¹ = 22437734747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22437734696 and 22437734705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22437734747) 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, 58128654 + ... + 58129039.

It is an arithmetic number, because the mean of its divisors is an integer number (5638498159).

Almost surely, 2^22437734749 is an apocalyptic number.

It is an amenable number.

22437734749 is a deficient number, since it is larger than the sum of its proper divisors (116257887).

22437734749 is a wasteful number, since it uses less digits than its factorization.

22437734749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116257886.

The product of its digits is 7112448, while the sum is 52.

The spelling of 22437734749 in words is "twenty-two billion, four hundred thirty-seven million, seven hundred thirty-four thousand, seven hundred forty-nine".