20834729514 has 24 divisors (see below), whose sum is σ = 45146258820. Its totient is φ = 6944241408.

The previous prime is 20834729497. The next prime is 20834729537. The reversal of 20834729514 is 41592743802.

20834729514 is a `hidden beast` number, since 2 + 0 + 8 + 347 + 295 + 14 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20812967289 + 21762225 = 144267^2 + 4665^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20834729514.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 158842 + ... + 258650.

Almost surely, 2^20834729514 is an apocalyptic number.

20834729514 is an abundant number, since it is smaller than the sum of its proper divisors (24311529306).

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

20834729514 is a wasteful number, since it uses less digits than its factorization.

20834729514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111414 (or 111411 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 20834729514 in words is "twenty billion, eight hundred thirty-four million, seven hundred twenty-nine thousand, five hundred fourteen".