20080736578 has 16 divisors (see below), whose sum is σ = 34439071104. Its totient is φ = 8602292160.

The previous prime is 20080736573. The next prime is 20080736623. The reversal of 20080736578 is 87563708002.

It is not an unprimeable number, because it can be changed into a prime (20080736573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277975 + ... + 342682.

It is an arithmetic number, because the mean of its divisors is an integer number (2152441944).

Almost surely, 2^20080736578 is an apocalyptic number.

20080736578 is a deficient number, since it is larger than the sum of its proper divisors (14358334526).

20080736578 is a wasteful number, since it uses less digits than its factorization.

20080736578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622977.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 20080736578 in words is "twenty billion, eighty million, seven hundred thirty-six thousand, five hundred seventy-eight".