3870847705605 has 8 divisors (see below), whose sum is σ = 6193356328992. Its totient is φ = 2064452109648.

The previous prime is 3870847705591. The next prime is 3870847705619. The reversal of 3870847705605 is 5065077480783.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3870847705591) and next prime (3870847705619).

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

It is not a de Polignac number, because 3870847705605 - 2⁶ = 3870847705541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129028256839 + ... + 129028256868.

It is an arithmetic number, because the mean of its divisors is an integer number (774169541124).

Almost surely, 2^{3870847705605} is an apocalyptic number.

It is an amenable number.

3870847705605 is a deficient number, since it is larger than the sum of its proper divisors (2322508623387).

3870847705605 is a wasteful number, since it uses less digits than its factorization.

3870847705605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258056513715.

The product of its (nonzero) digits is 39513600, while the sum is 60.

The spelling of 3870847705605 in words is "three trillion, eight hundred seventy billion, eight hundred forty-seven million, seven hundred five thousand, six hundred five".