3728777748752 has 40 divisors (see below), whose sum is σ = 8257594771776. Its totient is φ = 1597851063936.

The previous prime is 3728777748727. The next prime is 3728777748763. The reversal of 3728777748752 is 2578477778273.

It is a self number, because there is not a number n which added to its sum of digits gives 3728777748752.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1130783 + ... + 2955710.

Almost surely, 2^{3728777748752} is an apocalyptic number.

It is an amenable number.

3728777748752 is an abundant number, since it is smaller than the sum of its proper divisors (4528817023024).

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

3728777748752 is a wasteful number, since it uses less digits than its factorization.

3728777748752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4094655 (or 4094649 counting only the distinct ones).

The product of its digits is 1807088640, while the sum is 74.

The spelling of 3728777748752 in words is "three trillion, seven hundred twenty-eight billion, seven hundred seventy-seven million, seven hundred forty-eight thousand, seven hundred fifty-two".