20014467757409 has 2 divisors, whose sum is σ = 20014467757410. Its totient is φ = 20014467757408.

The previous prime is 20014467757303. The next prime is 20014467757423. The reversal of 20014467757409 is 90475776441002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19821443728384 + 193024029025 = 4452128^2 + 439345^2 .

It is a cyclic number.

It is not a de Polignac number, because 20014467757409 - 2¹⁶ = 20014467691873 is a prime.

It is a super-2 number, since 2×20014467757409² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20014467757909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10007233878704 + 10007233878705.

It is an arithmetic number, because the mean of its divisors is an integer number (10007233878705).

Almost surely, 2^{20014467757409} is an apocalyptic number.

It is an amenable number.

20014467757409 is a deficient number, since it is larger than the sum of its proper divisors (1).

20014467757409 is an equidigital number, since it uses as much as digits as its factorization.

20014467757409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11854080, while the sum is 56.

The spelling of 20014467757409 in words is "twenty trillion, fourteen billion, four hundred sixty-seven million, seven hundred fifty-seven thousand, four hundred nine".