29847247126 has 4 divisors (see below), whose sum is σ = 44770870692. Its totient is φ = 14923623562.

The previous prime is 29847247099. The next prime is 29847247139. The reversal of 29847247126 is 62174274892.

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

It is a super-2 number, since 2×29847247126² (a number of 22 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 7461811780 + ... + 7461811783.

It is an arithmetic number, because the mean of its divisors is an integer number (11192717673).

Almost surely, 2^29847247126 is an apocalyptic number.

29847247126 is a deficient number, since it is larger than the sum of its proper divisors (14923623566).

29847247126 is a wasteful number, since it uses less digits than its factorization.

29847247126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14923623565.

The product of its digits is 2709504, while the sum is 52.

The spelling of 29847247126 in words is "twenty-nine billion, eight hundred forty-seven million, two hundred forty-seven thousand, one hundred twenty-six".