405888968029 has 2 divisors, whose sum is σ = 405888968030. Its totient is φ = 405888968028.

The previous prime is 405888967973. The next prime is 405888968099. The reversal of 405888968029 is 920869888504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 318761868100 + 87127099929 = 564590^2 + 295173^2 .

It is a cyclic number.

It is not a de Polignac number, because 405888968029 - 2¹³ = 405888959837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405888968099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202944484014 + 202944484015.

It is an arithmetic number, because the mean of its divisors is an integer number (202944484015).

Almost surely, 2^405888968029 is an apocalyptic number.

It is an amenable number.

405888968029 is a deficient number, since it is larger than the sum of its proper divisors (1).

405888968029 is an equidigital number, since it uses as much as digits as its factorization.

405888968029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79626240, while the sum is 67.

The spelling of 405888968029 in words is "four hundred five billion, eight hundred eighty-eight million, nine hundred sixty-eight thousand, twenty-nine".