15421472001 has 24 divisors (see below), whose sum is σ = 24326842176. Its totient is φ = 9356467680.

The previous prime is 15421471997. The next prime is 15421472023. The reversal of 15421472001 is 10027412451.

15421472001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15421472001 - 2² = 15421471997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15421472401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 919915 + ... + 936528.

It is an arithmetic number, because the mean of its divisors is an integer number (1013618424).

Almost surely, 2^15421472001 is an apocalyptic number.

It is an amenable number.

15421472001 is a deficient number, since it is larger than the sum of its proper divisors (8905370175).

15421472001 is a wasteful number, since it uses less digits than its factorization.

15421472001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856533 (or 1856530 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

Adding to 15421472001 its reverse (10027412451), we get a palindrome (25448884452).

The spelling of 15421472001 in words is "fifteen billion, four hundred twenty-one million, four hundred seventy-two thousand, one".