429075029521 has 2 divisors, whose sum is σ = 429075029522. Its totient is φ = 429075029520.

The previous prime is 429075029501. The next prime is 429075029533. The reversal of 429075029521 is 125920570924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 353168718400 + 75906311121 = 594280^2 + 275511^2 .

It is a cyclic number.

It is not a de Polignac number, because 429075029521 - 2³³ = 420485094929 is a prime.

It is not a weakly prime, because it can be changed into another prime (429075029501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214537514760 + 214537514761.

It is an arithmetic number, because the mean of its divisors is an integer number (214537514761).

Almost surely, 2^429075029521 is an apocalyptic number.

It is an amenable number.

429075029521 is a deficient number, since it is larger than the sum of its proper divisors (1).

429075029521 is an equidigital number, since it uses as much as digits as its factorization.

429075029521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 429075029521 in words is "four hundred twenty-nine billion, seventy-five million, twenty-nine thousand, five hundred twenty-one".