20434510529 has 8 divisors (see below), whose sum is σ = 21311152128. Its totient is φ = 19571460480.

The previous prime is 20434510519. The next prime is 20434510531. The reversal of 20434510529 is 92501543402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20434510529 - 2²⁴ = 20417733313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20434510519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3394817 + ... + 3400830.

It is an arithmetic number, because the mean of its divisors is an integer number (2663894016).

Almost surely, 2^20434510529 is an apocalyptic number.

It is an amenable number.

20434510529 is a deficient number, since it is larger than the sum of its proper divisors (876641599).

20434510529 is an equidigital number, since it uses as much as digits as its factorization.

20434510529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6795775.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 20434510529 in words is "twenty billion, four hundred thirty-four million, five hundred ten thousand, five hundred twenty-nine".