3641585787 has 48 divisors (see below), whose sum is σ = 6132672000. Its totient is φ = 2039190912.

The previous prime is 3641585749. The next prime is 3641585797. The reversal of 3641585787 is 7875851463.

It is a happy number.

3641585787 is a `hidden beast` number, since 3 + 64 + 1 + 5 + 8 + 578 + 7 = 666.

3641585787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3641585787 - 2⁶ = 3641585723 is a prime.

It is a super-2 number, since 2×3641585787² = 26522294088160818738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3641585797) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1333039 + ... + 1335767.

It is an arithmetic number, because the mean of its divisors is an integer number (127764000).

Almost surely, 2^3641585787 is an apocalyptic number.

3641585787 is a deficient number, since it is larger than the sum of its proper divisors (2491086213).

3641585787 is a wasteful number, since it uses less digits than its factorization.

3641585787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160 (or 3157 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The square root of 3641585787 is about 60345.5531667413. The cubic root of 3641585787 is about 1538.4976897940.

The spelling of 3641585787 in words is "three billion, six hundred forty-one million, five hundred eighty-five thousand, seven hundred eighty-seven".