1421636922186 has 96 divisors (see below), whose sum is σ = 3238963848000. Its totient is φ = 415184200704.

The previous prime is 1421636922179. The next prime is 1421636922227. The reversal of 1421636922186 is 6812296361241.

It is a happy number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1325250 + ... + 2144658.

It is an arithmetic number, because the mean of its divisors is an integer number (33739206750).

Almost surely, 2^{1421636922186} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421636922186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1619481924000).

1421636922186 is an abundant number, since it is smaller than the sum of its proper divisors (1817326925814).

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

1421636922186 is a wasteful number, since it uses less digits than its factorization.

1421636922186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819528 (or 819515 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The spelling of 1421636922186 in words is "one trillion, four hundred twenty-one billion, six hundred thirty-six million, nine hundred twenty-two thousand, one hundred eighty-six".