29805173401 has 2 divisors, whose sum is σ = 29805173402. Its totient is φ = 29805173400.

The previous prime is 29805173389. The next prime is 29805173537. The reversal of 29805173401 is 10437150892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24893266176 + 4911907225 = 157776^2 + 70085^2 .

It is a cyclic number.

It is not a de Polignac number, because 29805173401 - 2⁹ = 29805172889 is a prime.

It is a super-2 number, since 2×29805173401² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (29805173701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14902586700 + 14902586701.

It is an arithmetic number, because the mean of its divisors is an integer number (14902586701).

Almost surely, 2^29805173401 is an apocalyptic number.

It is an amenable number.

29805173401 is a deficient number, since it is larger than the sum of its proper divisors (1).

29805173401 is an equidigital number, since it uses as much as digits as its factorization.

29805173401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 29805173401 in words is "twenty-nine billion, eight hundred five million, one hundred seventy-three thousand, four hundred one".