29907749291 has 8 divisors (see below), whose sum is σ = 34181553120. Its totient is φ = 25634262528.

The previous prime is 29907749269. The next prime is 29907749299. The reversal of 29907749291 is 19294770992.

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

It is not a de Polignac number, because 29907749291 - 2⁶ = 29907749227 is a prime.

It is a super-2 number, since 2×29907749291² (a number of 22 digits) contains 22 as substring.

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 29907749291.

It is not an unprimeable number, because it can be changed into a prime (29907749299) 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, 178955 + ... + 303051.

It is an arithmetic number, because the mean of its divisors is an integer number (4272694140).

Almost surely, 2^29907749291 is an apocalyptic number.

29907749291 is a deficient number, since it is larger than the sum of its proper divisors (4273803829).

29907749291 is a wasteful number, since it uses less digits than its factorization.

29907749291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158533.

The product of its (nonzero) digits is 5143824, while the sum is 59.

The spelling of 29907749291 in words is "twenty-nine billion, nine hundred seven million, seven hundred forty-nine thousand, two hundred ninety-one".