29647989145 has 8 divisors (see below), whose sum is σ = 35774149320. Its totient is φ = 23587349760.

The previous prime is 29647989143. The next prime is 29647989199. The reversal of 29647989145 is 54198974692.

It can be written as a sum of positive squares in 4 ways, for example, as 2174263641 + 27473725504 = 46629^2 + 165752^2 .

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

It is not a de Polignac number, because 29647989145 - 2¹ = 29647989143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29647989143) 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, 16379200 + ... + 16381009.

It is an arithmetic number, because the mean of its divisors is an integer number (4471768665).

Almost surely, 2^29647989145 is an apocalyptic number.

It is an amenable number.

29647989145 is a deficient number, since it is larger than the sum of its proper divisors (6126160175).

29647989145 is a wasteful number, since it uses less digits than its factorization.

29647989145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32760395.

The product of its digits is 39191040, while the sum is 64.

The spelling of 29647989145 in words is "twenty-nine billion, six hundred forty-seven million, nine hundred eighty-nine thousand, one hundred forty-five".