15421524401 has 8 divisors (see below), whose sum is σ = 16279704000. Its totient is φ = 14567996880.

The previous prime is 15421524397. The next prime is 15421524421. The reversal of 15421524401 is 10442512451.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15421524401 - 2² = 15421524397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15421524421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1156205 + ... + 1169466.

It is an arithmetic number, because the mean of its divisors is an integer number (2034963000).

Almost surely, 2^15421524401 is an apocalyptic number.

It is an amenable number.

15421524401 is a deficient number, since it is larger than the sum of its proper divisors (858179599).

15421524401 is a wasteful number, since it uses less digits than its factorization.

15421524401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326039.

The product of its (nonzero) digits is 6400, while the sum is 29.

The spelling of 15421524401 in words is "fifteen billion, four hundred twenty-one million, five hundred twenty-four thousand, four hundred one".