29908284991 has 16 divisors (see below), whose sum is σ = 33653962944. Its totient is φ = 26372231424.

The previous prime is 29908284961. The next prime is 29908285003. The reversal of 29908284991 is 19948280992.

It is a cyclic number.

It is not a de Polignac number, because 29908284991 - 2¹⁹ = 29907760703 is a prime.

It is a super-2 number, since 2×29908284991² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29908284941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160275 + ... + 292411.

It is an arithmetic number, because the mean of its divisors is an integer number (2103372684).

Almost surely, 2^29908284991 is an apocalyptic number.

29908284991 is a deficient number, since it is larger than the sum of its proper divisors (3745677953).

29908284991 is a wasteful number, since it uses less digits than its factorization.

29908284991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132930.

The product of its (nonzero) digits is 6718464, while the sum is 61.

The spelling of 29908284991 in words is "twenty-nine billion, nine hundred eight million, two hundred eighty-four thousand, nine hundred ninety-one".