20513450034 has 96 divisors (see below), whose sum is σ = 57323859840. Its totient is φ = 5144428800.

The previous prime is 20513450033. The next prime is 20513450071. The reversal of 20513450034 is 43005431502.

20513450034 is a `hidden beast` number, since 20 + 5 + 134 + 500 + 3 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (20513450033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 214987 + ... + 295374.

It is an arithmetic number, because the mean of its divisors is an integer number (597123540).

Almost surely, 2^20513450034 is an apocalyptic number.

20513450034 is an abundant number, since it is smaller than the sum of its proper divisors (36810409806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20513450034 is a wasteful number, since it uses less digits than its factorization.

20513450034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510416 (or 510413 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 20513450034 its reverse (43005431502), we get a palindrome (63518881536).

The spelling of 20513450034 in words is "twenty billion, five hundred thirteen million, four hundred fifty thousand, thirty-four".