20180474297 has 4 divisors (see below), whose sum is σ = 20187486720. Its totient is φ = 20173461876.

The previous prime is 20180474287. The next prime is 20180474341. The reversal of 20180474297 is 79247408102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20180474297 - 2⁶ = 20180474233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20180474207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3501893 + ... + 3507650.

It is an arithmetic number, because the mean of its divisors is an integer number (5046871680).

Almost surely, 2^20180474297 is an apocalyptic number.

It is an amenable number.

20180474297 is a deficient number, since it is larger than the sum of its proper divisors (7012423).

20180474297 is an equidigital number, since it uses as much as digits as its factorization.

20180474297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7012422.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 20180474297 in words is "twenty billion, one hundred eighty million, four hundred seventy-four thousand, two hundred ninety-seven".