20604264426 has 12 divisors (see below), whose sum is σ = 44642572962. Its totient is φ = 6868088136.

The previous prime is 20604264419. The next prime is 20604264427. The reversal of 20604264426 is 62446240602.

20604264426 is a `hidden beast` number, since 2 + 0 + 6 + 0 + 4 + 2 + 644 + 2 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17397873801 + 3206390625 = 131901^2 + 56625^2 .

It is not an unprimeable number, because it can be changed into a prime (20604264427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 572340661 + ... + 572340696.

Almost surely, 2^20604264426 is an apocalyptic number.

20604264426 is an abundant number, since it is smaller than the sum of its proper divisors (24038308536).

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

20604264426 is a wasteful number, since it uses less digits than its factorization.

20604264426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144681365 (or 1144681362 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 20604264426 in words is "twenty billion, six hundred four million, two hundred sixty-four thousand, four hundred twenty-six".