20535710474 has 8 divisors (see below), whose sum is σ = 31636094628. Its totient is φ = 9990345600.

The previous prime is 20535710431. The next prime is 20535710479. The reversal of 20535710474 is 47401753502.

It can be written as a sum of positive squares in 2 ways, for example, as 20251282249 + 284428225 = 142307^2 + 16865^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20535710479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138754727 + ... + 138754874.

Almost surely, 2^20535710474 is an apocalyptic number.

20535710474 is a deficient number, since it is larger than the sum of its proper divisors (11100384154).

20535710474 is a wasteful number, since it uses less digits than its factorization.

20535710474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277509640.

The product of its (nonzero) digits is 117600, while the sum is 38.

The spelling of 20535710474 in words is "twenty billion, five hundred thirty-five million, seven hundred ten thousand, four hundred seventy-four".