20435467093 has 2 divisors, whose sum is σ = 20435467094. Its totient is φ = 20435467092.

The previous prime is 20435466991. The next prime is 20435467123. The reversal of 20435467093 is 39076453402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17271742084 + 3163725009 = 131422^2 + 56247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20435467093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20435467193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10217733546 + 10217733547.

It is an arithmetic number, because the mean of its divisors is an integer number (10217733547).

Almost surely, 2^20435467093 is an apocalyptic number.

It is an amenable number.

20435467093 is a deficient number, since it is larger than the sum of its proper divisors (1).

20435467093 is an equidigital number, since it uses as much as digits as its factorization.

20435467093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 20435467093 in words is "twenty billion, four hundred thirty-five million, four hundred sixty-seven thousand, ninety-three".