40772447633 has 2 divisors, whose sum is σ = 40772447634. Its totient is φ = 40772447632.

The previous prime is 40772447629. The next prime is 40772447671. The reversal of 40772447633 is 33674427704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38570210449 + 2202237184 = 196393^2 + 46928^2 .

It is a cyclic number.

It is not a de Polignac number, because 40772447633 - 2² = 40772447629 is a prime.

It is a super-3 number, since 3×40772447633³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (40772440633) 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, 20386223816 + 20386223817.

It is an arithmetic number, because the mean of its divisors is an integer number (20386223817).

Almost surely, 2^40772447633 is an apocalyptic number.

It is an amenable number.

40772447633 is a deficient number, since it is larger than the sum of its proper divisors (1).

40772447633 is an equidigital number, since it uses as much as digits as its factorization.

40772447633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2370816, while the sum is 47.

The spelling of 40772447633 in words is "forty billion, seven hundred seventy-two million, four hundred forty-seven thousand, six hundred thirty-three".