3865725064 has 32 divisors (see below), whose sum is σ = 7677595800. Its totient is φ = 1818455040.

The previous prime is 3865725053. The next prime is 3865725089. The reversal of 3865725064 is 4605275683.

It can be written as a sum of positive squares in 4 ways, for example, as 2665656900 + 1200068164 = 51630^2 + 34642^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543322 + ... + 550390.

Almost surely, 2^3865725064 is an apocalyptic number.

3865725064 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3865725064 is a deficient number, since it is larger than the sum of its proper divisors (3811870736).

3865725064 is a wasteful number, since it uses less digits than its factorization.

3865725064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11113 (or 11109 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

The square root of 3865725064 is about 62174.9552794371. The cubic root of 3865725064 is about 1569.4361592483.

The spelling of 3865725064 in words is "three billion, eight hundred sixty-five million, seven hundred twenty-five thousand, sixty-four".