29811768047 has 8 divisors (see below), whose sum is σ = 31206868992. Its totient is φ = 28443756600.

The previous prime is 29811768011. The next prime is 29811768097. The reversal of 29811768047 is 74086711892.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 29811768047 - 2²² = 29807573743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29811768047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29811768097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6770123 + ... + 6774524.

It is an arithmetic number, because the mean of its divisors is an integer number (3900858624).

Almost surely, 2^29811768047 is an apocalyptic number.

29811768047 is a deficient number, since it is larger than the sum of its proper divisors (1395100945).

29811768047 is a wasteful number, since it uses less digits than its factorization.

29811768047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13544749.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 29811768047 in words is "twenty-nine billion, eight hundred eleven million, seven hundred sixty-eight thousand, forty-seven".