208261410047 has 4 divisors (see below), whose sum is σ = 208285842336. Its totient is φ = 208236977760.

The previous prime is 208261410037. The next prime is 208261410061. The reversal of 208261410047 is 740014162802.

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 208261410047 - 2²² = 208257215743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 208261409989 and 208261410016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208261410037) 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, 12203354 + ... + 12220407.

It is an arithmetic number, because the mean of its divisors is an integer number (52071460584).

Almost surely, 2^208261410047 is an apocalyptic number.

208261410047 is a deficient number, since it is larger than the sum of its proper divisors (24432289).

208261410047 is an equidigital number, since it uses as much as digits as its factorization.

208261410047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24432288.

The product of its (nonzero) digits is 21504, while the sum is 35.

Adding to 208261410047 its reverse (740014162802), we get a palindrome (948275572849).

The spelling of 208261410047 in words is "two hundred eight billion, two hundred sixty-one million, four hundred ten thousand, forty-seven".