20588078474 has 4 divisors (see below), whose sum is σ = 30882117714. Its totient is φ = 10294039236.

The previous prime is 20588078473. The next prime is 20588078479. The reversal of 20588078474 is 47487088502.

20588078474 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15090894025 + 5497184449 = 122845^2 + 74143^2 .

It is not an unprimeable number, because it can be changed into a prime (20588078473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5147019617 + ... + 5147019620.

Almost surely, 2^20588078474 is an apocalyptic number.

20588078474 is a deficient number, since it is larger than the sum of its proper divisors (10294039240).

20588078474 is a wasteful number, since it uses less digits than its factorization.

20588078474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10294039239.

The product of its (nonzero) digits is 4014080, while the sum is 53.

The spelling of 20588078474 in words is "twenty billion, five hundred eighty-eight million, seventy-eight thousand, four hundred seventy-four".