40470073291 has 2 divisors, whose sum is σ = 40470073292. Its totient is φ = 40470073290.

The previous prime is 40470073289. The next prime is 40470073313. The reversal of 40470073291 is 19237007404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40470073291 - 2¹ = 40470073289 is a prime.

Together with 40470073289, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40470073291.

It is not a weakly prime, because it can be changed into another prime (40470073991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20235036645 + 20235036646.

It is an arithmetic number, because the mean of its divisors is an integer number (20235036646).

Almost surely, 2^40470073291 is an apocalyptic number.

40470073291 is a deficient number, since it is larger than the sum of its proper divisors (1).

40470073291 is an equidigital number, since it uses as much as digits as its factorization.

40470073291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 40470073291 in words is "forty billion, four hundred seventy million, seventy-three thousand, two hundred ninety-one".