3645376782 has 32 divisors (see below), whose sum is σ = 7444524672. Its totient is φ = 1189597344.

The previous prime is 3645376747. The next prime is 3645376783. The reversal of 3645376782 is 2876735463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645376783) 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, 136233 + ... + 160779.

It is an arithmetic number, because the mean of its divisors is an integer number (232641396).

Almost surely, 2^3645376782 is an apocalyptic number.

3645376782 is an abundant number, since it is smaller than the sum of its proper divisors (3799147890).

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

3645376782 is a wasteful number, since it uses less digits than its factorization.

3645376782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25072.

The product of its digits is 5080320, while the sum is 51.

The square root of 3645376782 is about 60376.9557198771. The cubic root of 3645376782 is about 1539.0313780138.

The spelling of 3645376782 in words is "three billion, six hundred forty-five million, three hundred seventy-six thousand, seven hundred eighty-two".