23683728489 has 16 divisors (see below), whose sum is σ = 31785532800. Its totient is φ = 15685781760.

The previous prime is 23683728487. The next prime is 23683728491. The reversal of 23683728489 is 98482738632.

It is an interprime number because it is at equal distance from previous prime (23683728487) and next prime (23683728491).

It is not a de Polignac number, because 23683728489 - 2¹ = 23683728487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23683728487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364609 + ... + 424625.

It is an arithmetic number, because the mean of its divisors is an integer number (1986595800).

Almost surely, 2^23683728489 is an apocalyptic number.

It is an amenable number.

23683728489 is a deficient number, since it is larger than the sum of its proper divisors (8101804311).

23683728489 is a wasteful number, since it uses less digits than its factorization.

23683728489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60880.

The product of its digits is 27869184, while the sum is 60.

The spelling of 23683728489 in words is "twenty-three billion, six hundred eighty-three million, seven hundred twenty-eight thousand, four hundred eighty-nine".