3858605261 has 8 divisors (see below), whose sum is σ = 4452649344. Its totient is φ = 3275264880.

The previous prime is 3858605249. The next prime is 3858605287. The reversal of 3858605261 is 1625068583.

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 3858605261 - 2⁶ = 3858605197 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 (3858605221) 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, 2675150 + ... + 2676591.

It is an arithmetic number, because the mean of its divisors is an integer number (556581168).

Almost surely, 2^3858605261 is an apocalyptic number.

It is an amenable number.

3858605261 is a deficient number, since it is larger than the sum of its proper divisors (594044083).

3858605261 is a wasteful number, since it uses less digits than its factorization.

3858605261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351851.

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 3858605261 is about 62117.6726946527. The cubic root of 3858605261 is about 1568.4720500433.

The spelling of 3858605261 in words is "three billion, eight hundred fifty-eight million, six hundred five thousand, two hundred sixty-one".