21343765420622 has 4 divisors (see below), whose sum is σ = 32015648130936. Its totient is φ = 10671882710310.

The previous prime is 21343765420619. The next prime is 21343765420633. The reversal of 21343765420622 is 22602456734312.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5335941355154 + ... + 5335941355157.

It is an arithmetic number, because the mean of its divisors is an integer number (8003912032734).

Almost surely, 2^{21343765420622} is an apocalyptic number.

21343765420622 is a deficient number, since it is larger than the sum of its proper divisors (10671882710314).

21343765420622 is a wasteful number, since it uses less digits than its factorization.

21343765420622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10671882710313.

The product of its (nonzero) digits is 2903040, while the sum is 47.

The spelling of 21343765420622 in words is "twenty-one trillion, three hundred forty-three billion, seven hundred sixty-five million, four hundred twenty thousand, six hundred twenty-two".