21858300602 has 4 divisors (see below), whose sum is σ = 32787450906. Its totient is φ = 10929150300.

The previous prime is 21858300599. The next prime is 21858300641. The reversal of 21858300602 is 20600385812.

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

It can be written as a sum of positive squares in only one way, i.e., 18539273281 + 3319027321 = 136159^2 + 57611^2 .

It is a super-3 number, since 3×21858300602³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5464575149 + ... + 5464575152.

Almost surely, 2^21858300602 is an apocalyptic number.

21858300602 is a deficient number, since it is larger than the sum of its proper divisors (10929150304).

21858300602 is a wasteful number, since it uses less digits than its factorization.

21858300602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10929150303.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 21858300602 in words is "twenty-one billion, eight hundred fifty-eight million, three hundred thousand, six hundred two".