20107617247 has 2 divisors, whose sum is σ = 20107617248. Its totient is φ = 20107617246.

The previous prime is 20107617241. The next prime is 20107617347. The reversal of 20107617247 is 74271670102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20107617247 - 2³ = 20107617239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20107617241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10053808623 + 10053808624.

It is an arithmetic number, because the mean of its divisors is an integer number (10053808624).

Almost surely, 2^20107617247 is an apocalyptic number.

20107617247 is a deficient number, since it is larger than the sum of its proper divisors (1).

20107617247 is an equidigital number, since it uses as much as digits as its factorization.

20107617247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 37.

The spelling of 20107617247 in words is "twenty billion, one hundred seven million, six hundred seventeen thousand, two hundred forty-seven".