206261426413 has 16 divisors (see below), whose sum is σ = 238461459840. Its totient is φ = 174746347776.

The previous prime is 206261426401. The next prime is 206261426417. The reversal of 206261426413 is 314624162602.

It is a de Polignac number, because none of the positive numbers 2^k-206261426413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206261426417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1721970 + ... + 1837852.

It is an arithmetic number, because the mean of its divisors is an integer number (14903841240).

Almost surely, 2^206261426413 is an apocalyptic number.

It is an amenable number.

206261426413 is a deficient number, since it is larger than the sum of its proper divisors (32200033427).

206261426413 is a wasteful number, since it uses less digits than its factorization.

206261426413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118836.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 206261426413 in words is "two hundred six billion, two hundred sixty-one million, four hundred twenty-six thousand, four hundred thirteen".