29020785393601 has 4 divisors (see below), whose sum is σ = 30727890416772. Its totient is φ = 27313680370432.

The previous prime is 29020785393577. The next prime is 29020785393671. The reversal of 29020785393601 is 10639358702092.

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 13930660464400 + 15090124929201 = 3732380^2 + 3884601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29020785393601 is a prime.

It is a super-2 number, since 2×29020785393601² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29020785393671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853552511560 + ... + 853552511593.

It is an arithmetic number, because the mean of its divisors is an integer number (7681972604193).

Almost surely, 2^{29020785393601} is an apocalyptic number.

It is an amenable number.

29020785393601 is a deficient number, since it is larger than the sum of its proper divisors (1707105023171).

29020785393601 is a wasteful number, since it uses less digits than its factorization.

29020785393601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707105023170.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 29020785393601 in words is "twenty-nine trillion, twenty billion, seven hundred eighty-five million, three hundred ninety-three thousand, six hundred one".