20647474602 has 32 divisors (see below), whose sum is σ = 41831808000. Its totient is φ = 6793074288.

The previous prime is 20647474579. The next prime is 20647474697.

It is a happy number.

20647474602 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1937613 + ... + 1948239.

It is an arithmetic number, because the mean of its divisors is an integer number (1307244000).

Almost surely, 2^20647474602 is an apocalyptic number.

20647474602 is an abundant number, since it is smaller than the sum of its proper divisors (21184333398).

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

20647474602 is a wasteful number, since it uses less digits than its factorization.

20647474602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14810.

The product of its (nonzero) digits is 451584, while the sum is 42.

The spelling of 20647474602 in words is "twenty billion, six hundred forty-seven million, four hundred seventy-four thousand, six hundred two".