20069696947 has 2 divisors, whose sum is σ = 20069696948. Its totient is φ = 20069696946.

The previous prime is 20069696909. The next prime is 20069697031. The reversal of 20069696947 is 74969696002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20069696947 is a prime.

It is a super-2 number, since 2×20069696947² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20069696891 and 20069696900.

It is not a weakly prime, because it can be changed into another prime (20069676947) 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, 10034848473 + 10034848474.

It is an arithmetic number, because the mean of its divisors is an integer number (10034848474).

Almost surely, 2^20069696947 is an apocalyptic number.

20069696947 is a deficient number, since it is larger than the sum of its proper divisors (1).

20069696947 is an equidigital number, since it uses as much as digits as its factorization.

20069696947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8817984, while the sum is 58.

The spelling of 20069696947 in words is "twenty billion, sixty-nine million, six hundred ninety-six thousand, nine hundred forty-seven".