3644609491596 has 48 divisors (see below), whose sum is σ = 8783290062848. Its totient is φ = 1175027472000.

The previous prime is 3644609491571. The next prime is 3644609491603. The reversal of 3644609491596 is 6951949064463.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2050000 + ... + 3389943.

Almost surely, 2^{3644609491596} is an apocalyptic number.

It is an amenable number.

3644609491596 is an abundant number, since it is smaller than the sum of its proper divisors (5138680571252).

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

3644609491596 is a wasteful number, since it uses less digits than its factorization.

3644609491596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5441782 (or 5441780 counting only the distinct ones).

The product of its (nonzero) digits is 151165440, while the sum is 66.

The spelling of 3644609491596 in words is "three trillion, six hundred forty-four billion, six hundred nine million, four hundred ninety-one thousand, five hundred ninety-six".