3645623533712 has 80 divisors (see below), whose sum is σ = 7562453305344. Its totient is φ = 1699341120000.

The previous prime is 3645623533693. The next prime is 3645623533723. The reversal of 3645623533712 is 2173353265463.

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, 870137 + ... + 2836967.

Almost surely, 2^{3645623533712} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3645623533712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3781226652672).

3645623533712 is an abundant number, since it is smaller than the sum of its proper divisors (3916829771632).

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

3645623533712 is a wasteful number, since it uses less digits than its factorization.

3645623533712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967008 (or 1967002 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 50.

The spelling of 3645623533712 in words is "three trillion, six hundred forty-five billion, six hundred twenty-three million, five hundred thirty-three thousand, seven hundred twelve".