23345777889 has 48 divisors (see below), whose sum is σ = 38816354304. Its totient is φ = 13244688000.

The previous prime is 23345777887. The next prime is 23345777891. The reversal of 23345777889 is 98877754332.

23345777889 is a `hidden beast` number, since 2 + 33 + 457 + 7 + 78 + 89 = 666.

It is an interprime number because it is at equal distance from previous prime (23345777887) and next prime (23345777891).

It is not a de Polignac number, because 23345777889 - 2¹ = 23345777887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (23345777887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12543819 + ... + 12545679.

It is an arithmetic number, because the mean of its divisors is an integer number (808674048).

Almost surely, 2^23345777889 is an apocalyptic number.

It is an amenable number.

23345777889 is a deficient number, since it is larger than the sum of its proper divisors (15470576415).

23345777889 is a wasteful number, since it uses less digits than its factorization.

23345777889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3198 (or 3195 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 63.

The spelling of 23345777889 in words is "twenty-three billion, three hundred forty-five million, seven hundred seventy-seven thousand, eight hundred eighty-nine".