29852959139 has 4 divisors (see below), whose sum is σ = 29932994256. Its totient is φ = 29772924024.

The previous prime is 29852959133. The next prime is 29852959151. The reversal of 29852959139 is 93195925892.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29852959139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29852959133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40016999 + ... + 40017744.

It is an arithmetic number, because the mean of its divisors is an integer number (7483248564).

Almost surely, 2^29852959139 is an apocalyptic number.

29852959139 is a deficient number, since it is larger than the sum of its proper divisors (80035117).

29852959139 is an equidigital number, since it uses as much as digits as its factorization.

29852959139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80035116.

The product of its digits is 15746400, while the sum is 62.

The spelling of 29852959139 in words is "twenty-nine billion, eight hundred fifty-two million, nine hundred fifty-nine thousand, one hundred thirty-nine".