40634433064 has 16 divisors (see below), whose sum is σ = 76194592020. Its totient is φ = 20315875200.

The previous prime is 40634433041. The next prime is 40634433137. The reversal of 40634433064 is 46033443604.

It can be written as a sum of positive squares in 2 ways, for example, as 34277560164 + 6356872900 = 185142^2 + 79730^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32509 + ... + 286924.

Almost surely, 2^40634433064 is an apocalyptic number.

It is an amenable number.

40634433064 is a deficient number, since it is larger than the sum of its proper divisors (35560158956).

40634433064 is a wasteful number, since it uses less digits than its factorization.

40634433064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335340 (or 335336 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 40634433064 its reverse (46033443604), we get a palindrome (86667876668).

The spelling of 40634433064 in words is "forty billion, six hundred thirty-four million, four hundred thirty-three thousand, sixty-four".