20709007832699 has 2 divisors, whose sum is σ = 20709007832700. Its totient is φ = 20709007832698.

The previous prime is 20709007832609. The next prime is 20709007832707. The reversal of 20709007832699 is 99623870090702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20709007832699 - 2²⁸ = 20708739397243 is a prime.

It is not a weakly prime, because it can be changed into another prime (20709007832609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10354503916349 + 10354503916350.

It is an arithmetic number, because the mean of its divisors is an integer number (10354503916350).

Almost surely, 2^{20709007832699} is an apocalyptic number.

20709007832699 is a deficient number, since it is larger than the sum of its proper divisors (1).

20709007832699 is an equidigital number, since it uses as much as digits as its factorization.

20709007832699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20575296, while the sum is 62.

The spelling of 20709007832699 in words is "twenty trillion, seven hundred nine billion, seven million, eight hundred thirty-two thousand, six hundred ninety-nine".