20751835772034 has 12 divisors (see below), whose sum is σ = 44962310839446. Its totient is φ = 6917278590672.

The previous prime is 20751835772009. The next prime is 20751835772069. The reversal of 20751835772034 is 43027753815702.

20751835772034 is a `hidden beast` number, since 2 + 0 + 7 + 5 + 18 + 3 + 577 + 20 + 34 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12446805168009 + 8305030604025 = 3528003^2 + 2881845^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 576439882539 + ... + 576439882574.

Almost surely, 2^{20751835772034} is an apocalyptic number.

20751835772034 is an abundant number, since it is smaller than the sum of its proper divisors (24210475067412).

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

20751835772034 is a wasteful number, since it uses less digits than its factorization.

20751835772034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152879765121 (or 1152879765118 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 54.

The spelling of 20751835772034 in words is "twenty trillion, seven hundred fifty-one billion, eight hundred thirty-five million, seven hundred seventy-two thousand, thirty-four".