40502291273 has 2 divisors, whose sum is σ = 40502291274. Its totient is φ = 40502291272.

The previous prime is 40502291243. The next prime is 40502291353. The reversal of 40502291273 is 37219220504.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37111325449 + 3390965824 = 192643^2 + 58232^2 .

It is a cyclic number.

It is not a de Polignac number, because 40502291273 - 2¹⁰ = 40502290249 is a prime.

It is not a weakly prime, because it can be changed into another prime (40502291243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20251145636 + 20251145637.

It is an arithmetic number, because the mean of its divisors is an integer number (20251145637).

Almost surely, 2^40502291273 is an apocalyptic number.

It is an amenable number.

40502291273 is a deficient number, since it is larger than the sum of its proper divisors (1).

40502291273 is an equidigital number, since it uses as much as digits as its factorization.

40502291273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 40502291273 in words is "forty billion, five hundred two million, two hundred ninety-one thousand, two hundred seventy-three".