21351722483 has 8 divisors (see below), whose sum is σ = 26279043168. Its totient is φ = 16893670464.

The previous prime is 21351722467. The next prime is 21351722507. The reversal of 21351722483 is 38422715312.

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

It is a cyclic number.

It is not a de Polignac number, because 21351722483 - 2⁴ = 21351722467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21351722443) 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, 117317066 + ... + 117317247.

It is an arithmetic number, because the mean of its divisors is an integer number (3284880396).

Almost surely, 2^21351722483 is an apocalyptic number.

21351722483 is a deficient number, since it is larger than the sum of its proper divisors (4927320685).

21351722483 is a wasteful number, since it uses less digits than its factorization.

21351722483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234634333.

The product of its digits is 80640, while the sum is 38.

The spelling of 21351722483 in words is "twenty-one billion, three hundred fifty-one million, seven hundred twenty-two thousand, four hundred eighty-three".