3651813140 has 12 divisors (see below), whose sum is σ = 7668807636. Its totient is φ = 1460725248.

The previous prime is 3651813127. The next prime is 3651813211. The reversal of 3651813140 is 413181563.

It can be written as a sum of positive squares in 2 ways, for example, as 1857782404 + 1794030736 = 43102^2 + 42356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3651813097 and 3651813106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91295309 + ... + 91295348.

It is an arithmetic number, because the mean of its divisors is an integer number (639067303).

Almost surely, 2^3651813140 is an apocalyptic number.

It is an amenable number.

3651813140 is an abundant number, since it is smaller than the sum of its proper divisors (4016994496).

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

3651813140 is a wasteful number, since it uses less digits than its factorization.

3651813140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182590666 (or 182590664 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 3651813140 is about 60430.2336583270. The cubic root of 3651813140 is about 1539.9366280776.

The spelling of 3651813140 in words is "three billion, six hundred fifty-one million, eight hundred thirteen thousand, one hundred forty".