1521132421198 has 32 divisors (see below), whose sum is σ = 2623678396416. Its totient is φ = 655919576928.

The previous prime is 1521132421187. The next prime is 1521132421199. The reversal of 1521132421198 is 8911242311251.

It is a self number, because there is not a number n which added to its sum of digits gives 1521132421198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521132421199) 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 15 ways as a sum of consecutive naturals, for example, 29552190 + ... + 29603617.

It is an arithmetic number, because the mean of its divisors is an integer number (81989949888).

Almost surely, 2^{1521132421198} is an apocalyptic number.

1521132421198 is a deficient number, since it is larger than the sum of its proper divisors (1102545975218).

1521132421198 is a wasteful number, since it uses less digits than its factorization.

1521132421198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59155888.

The product of its digits is 34560, while the sum is 40.

The spelling of 1521132421198 in words is "one trillion, five hundred twenty-one billion, one hundred thirty-two million, four hundred twenty-one thousand, one hundred ninety-eight".