3808545479261 has 4 divisors (see below), whose sum is σ = 3809311328892. Its totient is φ = 3807779629632.

The previous prime is 3808545479243. The next prime is 3808545479281. The reversal of 3808545479261 is 1629745458083.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1610386380100 + 2198159099161 = 1269010^2 + 1482619^2 .

It is a cyclic number.

It is not a de Polignac number, because 3808545479261 - 2¹⁴ = 3808545462877 is a prime.

It is a super-2 number, since 2×3808545479261² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3808545479194 and 3808545479203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3808545479281) 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, 382917356 + ... + 382927301.

It is an arithmetic number, because the mean of its divisors is an integer number (952327832223).

It is a 1-persistent number, because it is pandigital, but 2⋅3808545479261 = 7617090958522 is not.

Almost surely, 2^{3808545479261} is an apocalyptic number.

It is an amenable number.

3808545479261 is a deficient number, since it is larger than the sum of its proper divisors (765849631).

3808545479261 is an equidigital number, since it uses as much as digits as its factorization.

3808545479261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765849630.

The product of its (nonzero) digits is 58060800, while the sum is 62.

The spelling of 3808545479261 in words is "three trillion, eight hundred eight billion, five hundred forty-five million, four hundred seventy-nine thousand, two hundred sixty-one".