3784145615252 has 6 divisors (see below), whose sum is σ = 6622254826698. Its totient is φ = 1892072807624.

The previous prime is 3784145615219. The next prime is 3784145615291. The reversal of 3784145615252 is 2525165414873.

It can be written as a sum of positive squares in only one way, i.e., 3711502428676 + 72643186576 = 1926526^2 + 269524^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3784145615194 and 3784145615203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473018201903 + ... + 473018201910.

It is an arithmetic number, because the mean of its divisors is an integer number (1103709137783).

Almost surely, 2^{3784145615252} is an apocalyptic number.

It is an amenable number.

3784145615252 is a deficient number, since it is larger than the sum of its proper divisors (2838109211446).

3784145615252 is a wasteful number, since it uses less digits than its factorization.

3784145615252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946036403817 (or 946036403815 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 53.

The spelling of 3784145615252 in words is "three trillion, seven hundred eighty-four billion, one hundred forty-five million, six hundred fifteen thousand, two hundred fifty-two".