20473474267 has 4 divisors (see below), whose sum is σ = 20664815256. Its totient is φ = 20282133280.

The previous prime is 20473474249. The next prime is 20473474279. The reversal of 20473474267 is 76247437402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20473474267 - 2⁷ = 20473474139 is a prime.

It is a super-2 number, since 2×20473474267² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20473474237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95670334 + ... + 95670547.

It is an arithmetic number, because the mean of its divisors is an integer number (5166203814).

Almost surely, 2^20473474267 is an apocalyptic number.

20473474267 is a deficient number, since it is larger than the sum of its proper divisors (191340989).

20473474267 is a wasteful number, since it uses less digits than its factorization.

20473474267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191340988.

The product of its (nonzero) digits is 1580544, while the sum is 46.

The spelling of 20473474267 in words is "twenty billion, four hundred seventy-three million, four hundred seventy-four thousand, two hundred sixty-seven".