3784699690640 has 240 divisors, whose sum is σ = 10185790359360. Its totient is φ = 1303226496000.

The previous prime is 3784699690631. The next prime is 3784699690669. The reversal of 3784699690640 is 460969964873.

3784699690640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 646843715 + ... + 646849565.

It is an arithmetic number, because the mean of its divisors is an integer number (42440793164).

Almost surely, 2^{3784699690640} 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 3784699690640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5092895179680).

3784699690640 is an abundant number, since it is smaller than the sum of its proper divisors (6401090668720).

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

3784699690640 is a wasteful number, since it uses less digits than its factorization.

3784699690640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9422 (or 9405 counting only the distinct ones).

The product of its (nonzero) digits is 423263232, while the sum is 71.

The spelling of 3784699690640 in words is "three trillion, seven hundred eighty-four billion, six hundred ninety-nine million, six hundred ninety thousand, six hundred forty".