23428187008 has 128 divisors (see below), whose sum is σ = 49492684800. Its totient is φ = 11030108160.

The previous prime is 23428186981. The next prime is 23428187093. The reversal of 23428187008 is 80078182432.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50167191 + ... + 50167657.

It is an arithmetic number, because the mean of its divisors is an integer number (386661600).

Almost surely, 2^23428187008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23428187008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24746342400).

23428187008 is an abundant number, since it is smaller than the sum of its proper divisors (26064497792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23428187008 is a wasteful number, since it uses less digits than its factorization.

23428187008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The spelling of 23428187008 in words is "twenty-three billion, four hundred twenty-eight million, one hundred eighty-seven thousand, eight".