20246519807 has 2 divisors, whose sum is σ = 20246519808. Its totient is φ = 20246519806.

The previous prime is 20246519789. The next prime is 20246519809. The reversal of 20246519807 is 70891564202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20246519807 - 2¹⁰ = 20246518783 is a prime.

Together with 20246519809, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20246519809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10123259903 + 10123259904.

It is an arithmetic number, because the mean of its divisors is an integer number (10123259904).

Almost surely, 2^20246519807 is an apocalyptic number.

20246519807 is a deficient number, since it is larger than the sum of its proper divisors (1).

20246519807 is an equidigital number, since it uses as much as digits as its factorization.

20246519807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 20246519807 in words is "twenty billion, two hundred forty-six million, five hundred nineteen thousand, eight hundred seven".