29009107640 has 16 divisors (see below), whose sum is σ = 65270492280. Its totient is φ = 11603643040.

The previous prime is 29009107597. The next prime is 29009107661. The reversal of 29009107640 is 4670190092.

It is a junction number, because it is equal to n+sod(n) for n = 29009107594 and 29009107603.

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 3 ways as a sum of consecutive naturals, for example, 362613806 + ... + 362613885.

Almost surely, 2^29009107640 is an apocalyptic number.

29009107640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29009107640 is an abundant number, since it is smaller than the sum of its proper divisors (36261384640).

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

29009107640 is a wasteful number, since it uses less digits than its factorization.

29009107640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725227702 (or 725227698 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 29009107640 in words is "twenty-nine billion, nine million, one hundred seven thousand, six hundred forty".