3868928917 has 24 divisors (see below), whose sum is σ = 4556293632. Its totient is φ = 3275395200.

The previous prime is 3868928887. The next prime is 3868928933. The reversal of 3868928917 is 7198298683.

It is a de Polignac number, because none of the positive numbers 2^k-3868928917 is a prime.

It is a super-2 number, since 2×3868928917² = 29937221929597585778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3868928117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1831692 + ... + 1833802.

It is an arithmetic number, because the mean of its divisors is an integer number (189845568).

Almost surely, 2^3868928917 is an apocalyptic number.

It is an amenable number.

3868928917 is a deficient number, since it is larger than the sum of its proper divisors (687364715).

3868928917 is a wasteful number, since it uses less digits than its factorization.

3868928917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569 (or 2562 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 61.

The square root of 3868928917 is about 62200.7147627742. The cubic root of 3868928917 is about 1569.8696143089.

The spelling of 3868928917 in words is "three billion, eight hundred sixty-eight million, nine hundred twenty-eight thousand, nine hundred seventeen".