40008747385289 has 2 divisors, whose sum is σ = 40008747385290. Its totient is φ = 40008747385288.

The previous prime is 40008747385283. The next prime is 40008747385357. The reversal of 40008747385289 is 98258374780004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29845275864889 + 10163471520400 = 5463083^2 + 3188020^2 .

It is a cyclic number.

It is not a de Polignac number, because 40008747385289 - 2⁴ = 40008747385273 is a prime.

It is a super-2 number, since 2×40008747385289² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40008747385283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20004373692644 + 20004373692645.

It is an arithmetic number, because the mean of its divisors is an integer number (20004373692645).

Almost surely, 2^{40008747385289} is an apocalyptic number.

It is an amenable number.

40008747385289 is a deficient number, since it is larger than the sum of its proper divisors (1).

40008747385289 is an equidigital number, since it uses as much as digits as its factorization.

40008747385289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108380160, while the sum is 65.

The spelling of 40008747385289 in words is "forty trillion, eight billion, seven hundred forty-seven million, three hundred eighty-five thousand, two hundred eighty-nine".