206426112547 has 8 divisors (see below), whose sum is σ = 210389184000. Its totient is φ = 202499567424.

The previous prime is 206426112523. The next prime is 206426112559. The reversal of 206426112547 is 745211624602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206426112547 - 2⁷ = 206426112419 is a prime.

It is a super-2 number, since 2×206426112547² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206426112587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9120172 + ... + 9142777.

It is an arithmetic number, because the mean of its divisors is an integer number (26298648000).

Almost surely, 2^206426112547 is an apocalyptic number.

206426112547 is a deficient number, since it is larger than the sum of its proper divisors (3963071453).

206426112547 is a wasteful number, since it uses less digits than its factorization.

206426112547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18263165.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 206426112547 in words is "two hundred six billion, four hundred twenty-six million, one hundred twelve thousand, five hundred forty-seven".