3644756020607 has 16 divisors (see below), whose sum is σ = 3991976472960. Its totient is φ = 3307095573600.

The previous prime is 3644756020547. The next prime is 3644756020673. The reversal of 3644756020607 is 7060206574463.

It is not a de Polignac number, because 3644756020607 - 2³² = 3640461053311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644756020687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9484232 + ... + 9861042.

It is an arithmetic number, because the mean of its divisors is an integer number (249498529560).

Almost surely, 2^{3644756020607} is an apocalyptic number.

3644756020607 is a deficient number, since it is larger than the sum of its proper divisors (347220452353).

3644756020607 is a wasteful number, since it uses less digits than its factorization.

3644756020607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389494.

The product of its (nonzero) digits is 5080320, while the sum is 50.

The spelling of 3644756020607 in words is "three trillion, six hundred forty-four billion, seven hundred fifty-six million, twenty thousand, six hundred seven".