29997552729771 has 32 divisors (see below), whose sum is σ = 48605523033600. Its totient is φ = 18133598838240.

The previous prime is 29997552729761. The next prime is 29997552729779. The reversal of 29997552729771 is 17792725579992.

29997552729771 is a `hidden beast` number, since 299 + 9 + 7 + 55 + 272 + 9 + 7 + 7 + 1 = 666.

It is not a de Polignac number, because 29997552729771 - 2³¹ = 29995405246123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29997552729779) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129706911 + ... + 129937976.

It is an arithmetic number, because the mean of its divisors is an integer number (1518922594800).

Almost surely, 2^{29997552729771} is an apocalyptic number.

29997552729771 is a deficient number, since it is larger than the sum of its proper divisors (18607970303829).

29997552729771 is a wasteful number, since it uses less digits than its factorization.

29997552729771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259645296 (or 259645290 counting only the distinct ones).

The product of its digits is 3150592200, while the sum is 81.

The spelling of 29997552729771 in words is "twenty-nine trillion, nine hundred ninety-seven billion, five hundred fifty-two million, seven hundred twenty-nine thousand, seven hundred seventy-one".