1421534473646 has 8 divisors (see below), whose sum is σ = 2436916240560. Its totient is φ = 609229060128.

The previous prime is 1421534473577. The next prime is 1421534473699. The reversal of 1421534473646 is 6463744351241.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1421534473594 and 1421534473603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50769088331 + ... + 50769088358.

It is an arithmetic number, because the mean of its divisors is an integer number (304614530070).

Almost surely, 2^{1421534473646} is an apocalyptic number.

1421534473646 is a deficient number, since it is larger than the sum of its proper divisors (1015381766914).

1421534473646 is a wasteful number, since it uses less digits than its factorization.

1421534473646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101538176698.

The product of its digits is 5806080, while the sum is 50.

The spelling of 1421534473646 in words is "one trillion, four hundred twenty-one billion, five hundred thirty-four million, four hundred seventy-three thousand, six hundred forty-six".