15423243254320 has 160 divisors (see below), whose sum is σ = 39282269773824. Its totient is φ = 5585086540800.

The previous prime is 15423243254311. The next prime is 15423243254333. The reversal of 15423243254320 is 2345234232451.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 204019249 + ... + 204094831.

Almost surely, 2^{15423243254320} is an apocalyptic number.

15423243254320 is a gapful number since it is divisible by the number (10) 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 15423243254320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19641134886912).

15423243254320 is an abundant number, since it is smaller than the sum of its proper divisors (23859026519504).

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

15423243254320 is a wasteful number, since it uses less digits than its factorization.

15423243254320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76571 (or 76565 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 15423243254320 its reverse (2345234232451), we get a palindrome (17768477486771).

The spelling of 15423243254320 in words is "fifteen trillion, four hundred twenty-three billion, two hundred forty-three million, two hundred fifty-four thousand, three hundred twenty".