20888248807 has 2 divisors, whose sum is σ = 20888248808. Its totient is φ = 20888248806.

The previous prime is 20888248763. The next prime is 20888248819. The reversal of 20888248807 is 70884288802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20888248807 - 2⁷ = 20888248679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20888248877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10444124403 + 10444124404.

It is an arithmetic number, because the mean of its divisors is an integer number (10444124404).

Almost surely, 2^20888248807 is an apocalyptic number.

20888248807 is a deficient number, since it is larger than the sum of its proper divisors (1).

20888248807 is an equidigital number, since it uses as much as digits as its factorization.

20888248807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3670016, while the sum is 55.

The spelling of 20888248807 in words is "twenty billion, eight hundred eighty-eight million, two hundred forty-eight thousand, eight hundred seven".