234251544520 has 128 divisors (see below), whose sum is σ = 611952906240. Its totient is φ = 79045528320.

The previous prime is 234251544509. The next prime is 234251544607. The reversal of 234251544520 is 25445152432.

It is a super-2 number, since 2×234251544520² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 234251544520.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4676005 + ... + 4725835.

It is an arithmetic number, because the mean of its divisors is an integer number (4780882080).

Almost surely, 2^234251544520 is an apocalyptic number.

234251544520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234251544520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305976453120).

234251544520 is an abundant number, since it is smaller than the sum of its proper divisors (377701361720).

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

234251544520 is a wasteful number, since it uses less digits than its factorization.

234251544520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50115 (or 50111 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 234251544520 its reverse (25445152432), we get a palindrome (259696696952).

The spelling of 234251544520 in words is "two hundred thirty-four billion, two hundred fifty-one million, five hundred forty-four thousand, five hundred twenty".