20367510871 has 2 divisors, whose sum is σ = 20367510872. Its totient is φ = 20367510870.

The previous prime is 20367510859. The next prime is 20367510907. The reversal of 20367510871 is 17801576302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20367510871 - 2⁷ = 20367510743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20367510971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10183755435 + 10183755436.

It is an arithmetic number, because the mean of its divisors is an integer number (10183755436).

Almost surely, 2^20367510871 is an apocalyptic number.

20367510871 is a deficient number, since it is larger than the sum of its proper divisors (1).

20367510871 is an equidigital number, since it uses as much as digits as its factorization.

20367510871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 20367510871 in words is "twenty billion, three hundred sixty-seven million, five hundred ten thousand, eight hundred seventy-one".