15421253198 has 16 divisors (see below), whose sum is σ = 24953288976. Its totient is φ = 7105491840.

The previous prime is 15421253191. The next prime is 15421253201. The reversal of 15421253198 is 89135212451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15421253191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484688 + ... + 515523.

It is an arithmetic number, because the mean of its divisors is an integer number (1559580561).

Almost surely, 2^15421253198 is an apocalyptic number.

15421253198 is a deficient number, since it is larger than the sum of its proper divisors (9532035778).

15421253198 is a wasteful number, since it uses less digits than its factorization.

15421253198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000819.

The product of its digits is 86400, while the sum is 41.

The spelling of 15421253198 in words is "fifteen billion, four hundred twenty-one million, two hundred fifty-three thousand, one hundred ninety-eight".