21832499401 has 2 divisors, whose sum is σ = 21832499402. Its totient is φ = 21832499400.

The previous prime is 21832499393. The next prime is 21832499497. The reversal of 21832499401 is 10499423812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19958908176 + 1873591225 = 141276^2 + 43285^2 .

It is a cyclic number.

It is not a de Polignac number, because 21832499401 - 2³ = 21832499393 is a prime.

It is not a weakly prime, because it can be changed into another prime (21832499501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10916249700 + 10916249701.

It is an arithmetic number, because the mean of its divisors is an integer number (10916249701).

Almost surely, 2^21832499401 is an apocalyptic number.

It is an amenable number.

21832499401 is a deficient number, since it is larger than the sum of its proper divisors (1).

21832499401 is an equidigital number, since it uses as much as digits as its factorization.

21832499401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 21832499401 in words is "twenty-one billion, eight hundred thirty-two million, four hundred ninety-nine thousand, four hundred one".