40643135100 has 126 divisors (see below), whose sum is σ = 132233151120. Its totient is φ = 10838149920.

The previous prime is 40643135089. The next prime is 40643135147. The reversal of 40643135100 is 153134604.

40643135100 is a `hidden beast` number, since 4 + 0 + 643 + 1 + 3 + 5 + 10 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 205860 + ... + 351659.

Almost surely, 2^40643135100 is an apocalyptic number.

It is an amenable number.

40643135100 is an abundant number, since it is smaller than the sum of its proper divisors (91590016020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40643135100 is a wasteful number, since it uses less digits than its factorization.

40643135100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557551 (or 557529 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 40643135100 its reverse (153134604), we get a palindrome (40796269704).

The spelling of 40643135100 in words is "forty billion, six hundred forty-three million, one hundred thirty-five thousand, one hundred".