21326233486 has 8 divisors (see below), whose sum is σ = 31990735944. Its totient is φ = 10662654840.

The previous prime is 21326233471. The next prime is 21326233501. The reversal of 21326233486 is 68433262312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21326233471) and next prime (21326233501).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170025 + ... + 267508.

It is an arithmetic number, because the mean of its divisors is an integer number (3998841993).

Almost surely, 2^21326233486 is an apocalyptic number.

21326233486 is a deficient number, since it is larger than the sum of its proper divisors (10664502458).

21326233486 is a wasteful number, since it uses less digits than its factorization.

21326233486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461906.

The product of its digits is 248832, while the sum is 40.

Adding to 21326233486 its reverse (68433262312), we get a palindrome (89759495798).

The spelling of 21326233486 in words is "twenty-one billion, three hundred twenty-six million, two hundred thirty-three thousand, four hundred eighty-six".