20413134491 has 8 divisors (see below), whose sum is σ = 20469196800. Its totient is φ = 20357113320.

The previous prime is 20413134473. The next prime is 20413134499. The reversal of 20413134491 is 19443131402.

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 20413134491 - 2¹⁴ = 20413118107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20413134499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163180 + ... + 1180598.

It is an arithmetic number, because the mean of its divisors is an integer number (2558649600).

Almost surely, 2^20413134491 is an apocalyptic number.

20413134491 is a deficient number, since it is larger than the sum of its proper divisors (56062309).

20413134491 is a wasteful number, since it uses less digits than its factorization.

20413134491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20569.

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 20413134491 its reverse (19443131402), we get a palindrome (39856265893).

The spelling of 20413134491 in words is "twenty billion, four hundred thirteen million, one hundred thirty-four thousand, four hundred ninety-one".