15421472000 has 288 divisors, whose sum is σ = 42311977344. Its totient is φ = 5554176000.

The previous prime is 15421471997. The next prime is 15421472023. The reversal of 15421472000 is 27412451.

It is a congruent number.

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, 67935887 + ... + 67936113.

It is an arithmetic number, because the mean of its divisors is an integer number (146916588).

Almost surely, 2^15421472000 is an apocalyptic number.

15421472000 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 15421472000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21155988672).

15421472000 is an abundant number, since it is smaller than the sum of its proper divisors (26890505344).

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

15421472000 is a wasteful number, since it uses less digits than its factorization.

15421472000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

Adding to 15421472000 its reverse (27412451), we get a palindrome (15448884451).

The spelling of 15421472000 in words is "fifteen billion, four hundred twenty-one million, four hundred seventy-two thousand".