29848147985 has 8 divisors (see below), whose sum is σ = 35878182120. Its totient is φ = 23838248704.

The previous prime is 29848147981. The next prime is 29848147993. The reversal of 29848147985 is 58974184892.

It can be written as a sum of positive squares in 4 ways, for example, as 8282638081 + 21565509904 = 91009^2 + 146852^2 .

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 29848147985 - 2² = 29848147981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29848147981) 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, 5030450 + ... + 5036379.

It is an arithmetic number, because the mean of its divisors is an integer number (4484772765).

Almost surely, 2^29848147985 is an apocalyptic number.

It is an amenable number.

29848147985 is a deficient number, since it is larger than the sum of its proper divisors (6030034135).

29848147985 is a wasteful number, since it uses less digits than its factorization.

29848147985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10067427.

The product of its digits is 46448640, while the sum is 65.

The spelling of 29848147985 in words is "twenty-nine billion, eight hundred forty-eight million, one hundred forty-seven thousand, nine hundred eighty-five".