1421931909359 has 8 divisors (see below), whose sum is σ = 1531337870160. Its totient is φ = 1312529746176.

The previous prime is 1421931909319. The next prime is 1421931909367. The reversal of 1421931909359 is 9539091391241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421931909359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421931909319) 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, 146594 + ... + 1692735.

It is an arithmetic number, because the mean of its divisors is an integer number (191417233770).

Almost surely, 2^{1421931909359} is an apocalyptic number.

1421931909359 is a deficient number, since it is larger than the sum of its proper divisors (109405960801).

1421931909359 is a wasteful number, since it uses less digits than its factorization.

1421931909359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898809.

The product of its (nonzero) digits is 2361960, while the sum is 56.

The spelling of 1421931909359 in words is "one trillion, four hundred twenty-one billion, nine hundred thirty-one million, nine hundred nine thousand, three hundred fifty-nine".