3869075128 has 8 divisors (see below), whose sum is σ = 7254515880. Its totient is φ = 1934537560.

The previous prime is 3869075123. The next prime is 3869075131. The reversal of 3869075128 is 8215709683.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×3869075128² = 29939484692216432768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3869075123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 241817188 + ... + 241817203.

It is an arithmetic number, because the mean of its divisors is an integer number (906814485).

Almost surely, 2^3869075128 is an apocalyptic number.

It is an amenable number.

3869075128 is a deficient number, since it is larger than the sum of its proper divisors (3385440752).

3869075128 is a wasteful number, since it uses less digits than its factorization.

3869075128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483634397 (or 483634393 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 3869075128 is about 62201.8900677463. The cubic root of 3869075128 is about 1569.8893897489.

The spelling of 3869075128 in words is "three billion, eight hundred sixty-nine million, seventy-five thousand, one hundred twenty-eight".