29632931381 has 2 divisors, whose sum is σ = 29632931382. Its totient is φ = 29632931380.

The previous prime is 29632931359. The next prime is 29632931417. The reversal of 29632931381 is 18313923692.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15038116900 + 14594814481 = 122630^2 + 120809^2 .

It is a cyclic number.

It is not a de Polignac number, because 29632931381 - 2¹⁸ = 29632669237 is a prime.

It is a super-2 number, since 2×29632931381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29632931311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14816465690 + 14816465691.

It is an arithmetic number, because the mean of its divisors is an integer number (14816465691).

Almost surely, 2^29632931381 is an apocalyptic number.

It is an amenable number.

29632931381 is a deficient number, since it is larger than the sum of its proper divisors (1).

29632931381 is an equidigital number, since it uses as much as digits as its factorization.

29632931381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 47.

The spelling of 29632931381 in words is "twenty-nine billion, six hundred thirty-two million, nine hundred thirty-one thousand, three hundred eighty-one".