20460449059 has 4 divisors (see below), whose sum is σ = 21664004904. Its totient is φ = 19256893216.

The previous prime is 20460449057. The next prime is 20460449129. The reversal of 20460449059 is 95094406402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20460449059 - 2¹ = 20460449057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20460449057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601777897 + ... + 601777930.

It is an arithmetic number, because the mean of its divisors is an integer number (5416001226).

Almost surely, 2^20460449059 is an apocalyptic number.

20460449059 is a deficient number, since it is larger than the sum of its proper divisors (1203555845).

20460449059 is a wasteful number, since it uses less digits than its factorization.

20460449059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203555844.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 20460449059 in words is "twenty billion, four hundred sixty million, four hundred forty-nine thousand, fifty-nine".