29679147653 has 4 divisors (see below), whose sum is σ = 29679540780. Its totient is φ = 29678754528.

The previous prime is 29679147643. The next prime is 29679147671. The reversal of 29679147653 is 35674197692.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 18097513729 + 11581633924 = 134527^2 + 107618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29679147653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29679147592 and 29679147601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29679147613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43688 + ... + 247521.

It is an arithmetic number, because the mean of its divisors is an integer number (7419885195).

Almost surely, 2^29679147653 is an apocalyptic number.

It is an amenable number.

29679147653 is a deficient number, since it is larger than the sum of its proper divisors (393127).

29679147653 is a wasteful number, since it uses less digits than its factorization.

29679147653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393126.

The product of its digits is 17146080, while the sum is 59.

The spelling of 29679147653 in words is "twenty-nine billion, six hundred seventy-nine million, one hundred forty-seven thousand, six hundred fifty-three".