70400734037209 has 2 divisors, whose sum is σ = 70400734037210. Its totient is φ = 70400734037208.

The previous prime is 70400734037191. The next prime is 70400734037353. The reversal of 70400734037209 is 90273043700407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68941054455625 + 1459679581584 = 8303075^2 + 1208172^2 .

It is a cyclic number.

It is not a de Polignac number, because 70400734037209 - 2¹¹ = 70400734035161 is a prime.

It is not a weakly prime, because it can be changed into another prime (70400734037009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35200367018604 + 35200367018605.

It is an arithmetic number, because the mean of its divisors is an integer number (35200367018605).

Almost surely, 2^{70400734037209} is an apocalyptic number.

It is an amenable number.

70400734037209 is a deficient number, since it is larger than the sum of its proper divisors (1).

70400734037209 is an equidigital number, since it uses as much as digits as its factorization.

70400734037209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 46.

The spelling of 70400734037209 in words is "seventy trillion, four hundred billion, seven hundred thirty-four million, thirty-seven thousand, two hundred nine".