29768542085 has 4 divisors (see below), whose sum is σ = 35722250508. Its totient is φ = 23814833664.

The previous prime is 29768542061. The next prime is 29768542091. The reversal of 29768542085 is 58024586792.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23677207876 + 6091334209 = 153874^2 + 78047^2 .

It is a cyclic number.

It is not a de Polignac number, because 29768542085 - 2¹⁴ = 29768525701 is a prime.

It is a super-2 number, since 2×29768542085² (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 29768542085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2976854204 + ... + 2976854213.

It is an arithmetic number, because the mean of its divisors is an integer number (8930562627).

Almost surely, 2^29768542085 is an apocalyptic number.

It is an amenable number.

29768542085 is a deficient number, since it is larger than the sum of its proper divisors (5953708423).

29768542085 is an equidigital number, since it uses as much as digits as its factorization.

29768542085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5953708422.

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 29768542085 in words is "twenty-nine billion, seven hundred sixty-eight million, five hundred forty-two thousand, eighty-five".