20232744649 has 8 divisors (see below), whose sum is σ = 21818845832. Its totient is φ = 18650891520.

The previous prime is 20232744641. The next prime is 20232744659. The reversal of 20232744649 is 94644723202.

It can be written as a sum of positive squares in 4 ways, for example, as 4590740025 + 15642004624 = 67755^2 + 125068^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20232744649 - 2³ = 20232744641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20232744641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052112 + ... + 1071169.

It is an arithmetic number, because the mean of its divisors is an integer number (2727355729).

Almost surely, 2^20232744649 is an apocalyptic number.

It is an amenable number.

20232744649 is a deficient number, since it is larger than the sum of its proper divisors (1586101183).

20232744649 is a wasteful number, since it uses less digits than its factorization.

20232744649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124027.

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 20232744649 in words is "twenty billion, two hundred thirty-two million, seven hundred forty-four thousand, six hundred forty-nine".