40235035221647 has 16 divisors (see below), whose sum is σ = 47568728247360. Its totient is φ = 33297810594048.

The previous prime is 40235035221637. The next prime is 40235035221683. The reversal of 40235035221647 is 74612253053204.

It is not a de Polignac number, because 40235035221647 - 2¹⁸ = 40235034959503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40235035221598 and 40235035221607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40235035221617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89611073 + ... + 90058949.

It is an arithmetic number, because the mean of its divisors is an integer number (2973045515460).

Almost surely, 2^{40235035221647} is an apocalyptic number.

40235035221647 is a deficient number, since it is larger than the sum of its proper divisors (7333693025713).

40235035221647 is a wasteful number, since it uses less digits than its factorization.

40235035221647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890450.

The product of its (nonzero) digits is 1209600, while the sum is 44.

The spelling of 40235035221647 in words is "forty trillion, two hundred thirty-five billion, thirty-five million, two hundred twenty-one thousand, six hundred forty-seven".