40746698072209 has 2 divisors, whose sum is σ = 40746698072210. Its totient is φ = 40746698072208.

The previous prime is 40746698072071. The next prime is 40746698072233. The reversal of 40746698072209 is 90227089664704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27586287630225 + 13160410441984 = 5252265^2 + 3627728^2 .

It is a cyclic number.

It is not a de Polignac number, because 40746698072209 - 2²⁵ = 40746664517777 is a prime.

It is not a weakly prime, because it can be changed into another prime (40746698072239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20373349036104 + 20373349036105.

It is an arithmetic number, because the mean of its divisors is an integer number (20373349036105).

Almost surely, 2^{40746698072209} is an apocalyptic number.

It is an amenable number.

40746698072209 is a deficient number, since it is larger than the sum of its proper divisors (1).

40746698072209 is an equidigital number, since it uses as much as digits as its factorization.

40746698072209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73156608, while the sum is 64.

The spelling of 40746698072209 in words is "forty trillion, seven hundred forty-six billion, six hundred ninety-eight million, seventy-two thousand, two hundred nine".