3643261627656 has 64 divisors (see below), whose sum is σ = 10439317140480. Its totient is φ = 1037932073280.

The previous prime is 3643261627651. The next prime is 3643261627769. The reversal of 3643261627656 is 6567261623463.

It is a junction number, because it is equal to n+sod(n) for n = 3643261627596 and 3643261627605.

It is not an unprimeable number, because it can be changed into a prime (3643261627651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31189660 + ... + 31306251.

It is an arithmetic number, because the mean of its divisors is an integer number (163114330320).

Almost surely, 2^{3643261627656} is an apocalyptic number.

It is an amenable number.

3643261627656 is an abundant number, since it is smaller than the sum of its proper divisors (6796055512824).

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

3643261627656 is a wasteful number, since it uses less digits than its factorization.

3643261627656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62496274 (or 62496270 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 57.

The spelling of 3643261627656 in words is "three trillion, six hundred forty-three billion, two hundred sixty-one million, six hundred twenty-seven thousand, six hundred fifty-six".