21936003407 has 2 divisors, whose sum is σ = 21936003408. Its totient is φ = 21936003406.

The previous prime is 21936003379. The next prime is 21936003469. The reversal of 21936003407 is 70430063912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21936003407 - 2¹⁶ = 21935937871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21936003497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10968001703 + 10968001704.

It is an arithmetic number, because the mean of its divisors is an integer number (10968001704).

Almost surely, 2^21936003407 is an apocalyptic number.

21936003407 is a deficient number, since it is larger than the sum of its proper divisors (1).

21936003407 is an equidigital number, since it uses as much as digits as its factorization.

21936003407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The spelling of 21936003407 in words is "twenty-one billion, nine hundred thirty-six million, three thousand, four hundred seven".