29818557249 has 16 divisors (see below), whose sum is σ = 42847651392. Its totient is φ = 18336483648.

The previous prime is 29818557247. The next prime is 29818557287. The reversal of 29818557249 is 94275581892.

It is not a de Polignac number, because 29818557249 - 2¹ = 29818557247 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 29818557192 and 29818557201.

It is not an unprimeable number, because it can be changed into a prime (29818557247) 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, 224887 + ... + 331980.

It is an arithmetic number, because the mean of its divisors is an integer number (2677978212).

Almost surely, 2^29818557249 is an apocalyptic number.

It is an amenable number.

29818557249 is a deficient number, since it is larger than the sum of its proper divisors (13029094143).

29818557249 is a wasteful number, since it uses less digits than its factorization.

29818557249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558256.

The product of its digits is 14515200, while the sum is 60.

The spelling of 29818557249 in words is "twenty-nine billion, eight hundred eighteen million, five hundred fifty-seven thousand, two hundred forty-nine".