21376029527 has 2 divisors, whose sum is σ = 21376029528. Its totient is φ = 21376029526.

The previous prime is 21376029497. The next prime is 21376029613. The reversal of 21376029527 is 72592067312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21376029527 - 2⁶ = 21376029463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21376829527) by changing a digit.

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, 10688014763 + 10688014764.

It is an arithmetic number, because the mean of its divisors is an integer number (10688014764).

Almost surely, 2^21376029527 is an apocalyptic number.

21376029527 is a deficient number, since it is larger than the sum of its proper divisors (1).

21376029527 is an equidigital number, since it uses as much as digits as its factorization.

21376029527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 21376029527 in words is "twenty-one billion, three hundred seventy-six million, twenty-nine thousand, five hundred twenty-seven".