3864156975 has 288 divisors, whose sum is σ = 8983710720. Its totient is φ = 1590969600.

The previous prime is 3864156973. The next prime is 3864156983. The reversal of 3864156975 is 5796514683.

3864156975 is a `hidden beast` number, since 3 + 8 + 6 + 4 + 1 + 569 + 75 = 666.

It is not a de Polignac number, because 3864156975 - 2¹ = 3864156973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3864156973) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 104436657 + ... + 104436693.

It is an arithmetic number, because the mean of its divisors is an integer number (31193440).

Almost surely, 2^3864156975 is an apocalyptic number.

3864156975 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3864156975 is an abundant number, since it is smaller than the sum of its proper divisors (5119553745).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3864156975 is a wasteful number, since it uses less digits than its factorization.

3864156975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 106 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 3864156975 is about 62162.3437058160. The cubic root of 3864156975 is about 1569.2239223567.

The spelling of 3864156975 in words is "three billion, eight hundred sixty-four million, one hundred fifty-six thousand, nine hundred seventy-five".