29161304638 has 8 divisors (see below), whose sum is σ = 43754866560. Its totient is φ = 14576349120.

The previous prime is 29161304617. The next prime is 29161304647. The reversal of 29161304638 is 83640316192.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×29161304638² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29161304594 and 29161304603.

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, 2143123 + ... + 2156686.

It is an arithmetic number, because the mean of its divisors is an integer number (5469358320).

Almost surely, 2^29161304638 is an apocalyptic number.

29161304638 is a deficient number, since it is larger than the sum of its proper divisors (14593561922).

29161304638 is a wasteful number, since it uses less digits than its factorization.

29161304638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303202.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 29161304638 in words is "twenty-nine billion, one hundred sixty-one million, three hundred four thousand, six hundred thirty-eight".