215729414029 has 2 divisors, whose sum is σ = 215729414030. Its totient is φ = 215729414028.

The previous prime is 215729413883. The next prime is 215729414039. The reversal of 215729414029 is 920414927512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142507760004 + 73221654025 = 377502^2 + 270595^2 .

It is a cyclic number.

It is not a de Polignac number, because 215729414029 - 2¹⁵ = 215729381261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 215729414029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215729414039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107864707014 + 107864707015.

It is an arithmetic number, because the mean of its divisors is an integer number (107864707015).

Almost surely, 2^215729414029 is an apocalyptic number.

It is an amenable number.

215729414029 is a deficient number, since it is larger than the sum of its proper divisors (1).

215729414029 is an equidigital number, since it uses as much as digits as its factorization.

215729414029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 215729414029 in words is "two hundred fifteen billion, seven hundred twenty-nine million, four hundred fourteen thousand, twenty-nine".