23430071808 has 720 divisors, whose sum is σ = 84306510288. Its totient is φ = 6171033600.

The previous prime is 23430071807. The next prime is 23430071837. The reversal of 23430071808 is 80817003432.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23430071807) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 633245166 + ... + 633245202.

Almost surely, 2^23430071808 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 23430071808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42153255144).

23430071808 is an abundant number, since it is smaller than the sum of its proper divisors (60876438480).

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

23430071808 is a wasteful number, since it uses less digits than its factorization.

23430071808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 23430071808 in words is "twenty-three billion, four hundred thirty million, seventy-one thousand, eight hundred eight".