215049586429 has 2 divisors, whose sum is σ = 215049586430. Its totient is φ = 215049586428.

The previous prime is 215049586379. The next prime is 215049586447. The reversal of 215049586429 is 924685940512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179943943204 + 35105643225 = 424198^2 + 187365^2 .

It is a cyclic number.

It is not a de Polignac number, because 215049586429 - 2³¹ = 212902102781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 215049586429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215049587429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107524793214 + 107524793215.

It is an arithmetic number, because the mean of its divisors is an integer number (107524793215).

Almost surely, 2^215049586429 is an apocalyptic number.

It is an amenable number.

215049586429 is a deficient number, since it is larger than the sum of its proper divisors (1).

215049586429 is an equidigital number, since it uses as much as digits as its factorization.

215049586429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 215049586429 in words is "two hundred fifteen billion, forty-nine million, five hundred eighty-six thousand, four hundred twenty-nine".