20058904849 has 2 divisors, whose sum is σ = 20058904850. Its totient is φ = 20058904848.

The previous prime is 20058904727. The next prime is 20058904867. The reversal of 20058904849 is 94840985002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18918627025 + 1140277824 = 137545^2 + 33768^2 .

It is a cyclic number.

It is not a de Polignac number, because 20058904849 - 2¹⁹ = 20058380561 is a prime.

It is not a weakly prime, because it can be changed into another prime (20058904549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10029452424 + 10029452425.

It is an arithmetic number, because the mean of its divisors is an integer number (10029452425).

Almost surely, 2^20058904849 is an apocalyptic number.

It is an amenable number.

20058904849 is a deficient number, since it is larger than the sum of its proper divisors (1).

20058904849 is an equidigital number, since it uses as much as digits as its factorization.

20058904849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 20058904849 in words is "twenty billion, fifty-eight million, nine hundred four thousand, eight hundred forty-nine".