20180474306 has 4 divisors (see below), whose sum is σ = 30270711462. Its totient is φ = 10090237152.

The previous prime is 20180474287. The next prime is 20180474341. The reversal of 20180474306 is 60347408102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60347408102 = 2 ⋅30173704051.

It can be written as a sum of positive squares in only one way, i.e., 13083928225 + 7096546081 = 114385^2 + 84241^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5045118575 + ... + 5045118578.

Almost surely, 2^20180474306 is an apocalyptic number.

20180474306 is a deficient number, since it is larger than the sum of its proper divisors (10090237156).

20180474306 is a wasteful number, since it uses less digits than its factorization.

20180474306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10090237155.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 20180474306 in words is "twenty billion, one hundred eighty million, four hundred seventy-four thousand, three hundred six".