40202010643 has 16 divisors (see below), whose sum is σ = 43693655040. Its totient is φ = 36848541600.

The previous prime is 40202010613. The next prime is 40202010679. The reversal of 40202010643 is 34601020204.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40202010643 - 2³³ = 31612076051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40202010613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4299153 + ... + 4308493.

It is an arithmetic number, because the mean of its divisors is an integer number (2730853440).

Almost surely, 2^40202010643 is an apocalyptic number.

40202010643 is a deficient number, since it is larger than the sum of its proper divisors (3491644397).

40202010643 is a wasteful number, since it uses less digits than its factorization.

40202010643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16698.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40202010643 its reverse (34601020204), we get a palindrome (74803030847).

The spelling of 40202010643 in words is "forty billion, two hundred two million, ten thousand, six hundred forty-three".