20296637629 has 2 divisors, whose sum is σ = 20296637630. Its totient is φ = 20296637628.

The previous prime is 20296637611. The next prime is 20296637687. The reversal of 20296637629 is 92673669202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17449881604 + 2846756025 = 132098^2 + 53355^2 .

It is a cyclic number.

It is not a de Polignac number, because 20296637629 - 2²¹ = 20294540477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20296637929) 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, 10148318814 + 10148318815.

It is an arithmetic number, because the mean of its divisors is an integer number (10148318815).

Almost surely, 2^20296637629 is an apocalyptic number.

It is an amenable number.

20296637629 is a deficient number, since it is larger than the sum of its proper divisors (1).

20296637629 is an equidigital number, since it uses as much as digits as its factorization.

20296637629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The spelling of 20296637629 in words is "twenty billion, two hundred ninety-six million, six hundred thirty-seven thousand, six hundred twenty-nine".