20429579395 has 16 divisors (see below), whose sum is σ = 25365130560. Its totient is φ = 15777430144.

The previous prime is 20429579383. The next prime is 20429579431. The reversal of 20429579395 is 59397592402.

It is a cyclic number.

It is not a de Polignac number, because 20429579395 - 2¹⁹ = 20429055107 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1706922 + ... + 1718848.

It is an arithmetic number, because the mean of its divisors is an integer number (1585320660).

Almost surely, 2^20429579395 is an apocalyptic number.

20429579395 is a deficient number, since it is larger than the sum of its proper divisors (4935551165).

20429579395 is a wasteful number, since it uses less digits than its factorization.

20429579395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23774.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 20429579395 in words is "twenty billion, four hundred twenty-nine million, five hundred seventy-nine thousand, three hundred ninety-five".